I love the BBS Field Guide. Its keys are well thought out, if not entirely perfect. The species accounts are well put together and appear to contain all the information you would want for a thumbnail sketch of a species. I also love that it's online, although since using it online I have paid for an actual paper copy
However, sometimes the obvious inonsistencies drive me mental. Look at this one:
The text clearly indicates that for this species the leaf length is "2-2.5mm" long. On the other hand the image adjacent clearly shows the leaf as barely 1mm long. How am I supposed to know which is correct? Especally when I am trying to differentiate between two species where this would help enormously (B.gemmiferum and dochotomum). As it happens gemmiferum also has a divergence between text and image, though not as bad.
I had this with another species too, although I eventually had to pick which was correct based on the (potentially misidentified) plant I had in my hand. Who knows how many species this glaring error pertains to.
Friday, 31 January 2014
More Bryum dichotomum
A few pics trying to capture the feel of the bulbils. Should have taken the graticule off earlier, really. Might have another go.
Thursday, 30 January 2014
Bicolored Bryum - B.dichotomum
Bryum Dichotomum, Bicolored Bryum
BBS Field Guide page
21/01/2014, Cullaloe LNR, Fife |
Aulacomnium palustre, Cullaloe LNR, 26.01.2014
Picked out from the marshy areas at Cullaloe, a tall skinny moss with longish pale green leaves and a whole lot of tomentum on the stem - hand lens not required!
Aulacomnium palustre, Bog Bead-moss
BBS Field Guide page
Aulacomnium palustre, Bog Bead-moss
BBS Field Guide page
Wednesday, 29 January 2014
Racomitrium aciculare and Didymodon tophaceous
Both blunt(ish)-tipped leaves with a very similar nerve. R.aciculare has a toothed blunt tip, where D.tophaceous has none. The Didymodon tapers more and is less rounded. The Racomitrium appears to have more of a revolute (involute?) leaf edge where the Didymodon has the appearance of only a narrow border.
I say all this because I have a plant in my field collection box marked as D.tophaceous, but it has rounded toothed tips. Every day's a school day, as they say.
Some borrowed images from Oregon State Uni:
My "Didymodon". The leaf below is really about 0.9mm - a very small example, so potentially confusing. Cell shape looks pretty Racomitrium to these newbie eyes too.
And a not-so-great shot of the plant as a whole
(Just noticed on Idaho website, comment on the Didymodon - <<I first found this species in Idaho in 1975, at which time I noted on the packet, "like Racomitrium aciculare except the margins are bistratose">> - so the similarity is noted there too)
I say all this because I have a plant in my field collection box marked as D.tophaceous, but it has rounded toothed tips. Every day's a school day, as they say.
Some borrowed images from Oregon State Uni:
Didymodon tophaceous |
Racomitrium aciculare |
My "Didymodon". The leaf below is really about 0.9mm - a very small example, so potentially confusing. Cell shape looks pretty Racomitrium to these newbie eyes too.
And a not-so-great shot of the plant as a whole
(Just noticed on Idaho website, comment on the Didymodon - <<I first found this species in Idaho in 1975, at which time I noted on the packet, "like Racomitrium aciculare except the margins are bistratose">> - so the similarity is noted there too)
Tuesday, 28 January 2014
Most common mosses by Vice County
The following mosses are in every British (all 112) and Irish (all 40) vice county, including VC300, which I assume is offshore but I don't know what it is. It may refer to the Channel Islands, which I see referred to as VC113 somewhere else. These are taken from the Census spreadsheet of 2013.
My thinking is that as a beginner the first task should be to learn these, and I have come across most of them at least in a very short time - seems like a reasonable foundation for spotting the less common ones and being able to contrast and compare.
(note there are 361 species - moss only - in VC85 in the census)
My thinking is that as a beginner the first task should be to learn these, and I have come across most of them at least in a very short time - seems like a reasonable foundation for spotting the less common ones and being able to contrast and compare.
(note there are 361 species - moss only - in VC85 in the census)
Species | # of vice counties | |
1 | Amblystegium serpens var. serpens * | 153 |
2 | Atrichum undulatum var. undulatum | 153 |
3 | Aulacomnium palustre | 153 |
4 | Barbula convoluta | 153 |
5 | Barbula unguiculata * | 153 |
6 | Brachythecium rutabulum * | 153 |
7 | Bryoerythrophyllum recurvirostrum * | 153 |
8 | Bryum argenteum * | 153 |
9 | Bryum capillare * | 153 |
10 | Bryum dichotomum * | 153 |
11 | Bryum pseudotriquetrum * | 153 |
12 | Calliergonella cuspidata * | 153 |
13 | Campylopus introflexus * | 153 |
14 | Campylopus pyriformis | 153 |
15 | Ceratodon purpureus | 153 |
16 | Cratoneuron filicinum | 153 |
17 | Ctenidium molluscum var. molluscum | 153 |
18 | Dicranella heteromalla * | 153 |
19 | Dicranella varia | 153 |
20 | Dicranum scoparium * | 153 |
21 | Didymodon rigidulus * | 153 |
22 | Eurhynchium striatum * | 153 |
23 | Fissidens taxifolius var. taxifolius * | 153 |
24 | Fontinalis antipyretica var. antipyretica | 153 |
25 | Funaria hygrometrica | 153 |
26 | Grimmia pulvinata * | 153 |
27 | Homalothecium sericeum * | 153 |
28 | Hypnum cupressiforme var. cupressiforme * | 153 |
29 | Hypnum cupressiforme var. resupinatum | 153 |
30 | Hypnum jutlandicum * | 153 |
31 | Isothecium alopecuroides | 153 |
32 | Isothecium myosuroides var. myosuroides | 153 |
33 | Kindbergia praelonga * | 153 |
34 | Mnium hornum * | 153 |
35 | Neckera complanata * | 153 |
36 | Orthotrichum anomalum * | 153 |
37 | Orthotrichum diaphanum * | 153 |
38 | Plagiomnium undulatum * | 153 |
39 | Pleurozium schreberi | 153 |
40 | Polytrichastrum formosum * | 153 |
41 | Polytrichum commune var. commune * | 153 |
42 | Pseudoscleropodium purum * | 153 |
43 | Rhytidiadelphus squarrosus * | 153 |
44 | Rhytidiadelphus triquetrus * | 153 |
45 | Thamnobryum alopecurum * | 153 |
46 | Thuidium tamariscinum * | 153 |
47 | Tortula muralis * | 153 |
48 | Zygodon viridissimus var. viridissimus * | 153 |
The scientific name dictionary
Scientific names are a horrible combination of mostly, but not exclusively, Greek words and bits of words which have been Latinised based on religion-influenced current practice of the 18th century and then pronounced in English - in the UK at least. We should maybe be thankful that at least it's not Swedish. The binomial/quadronomial system and the species concept also have hints of the quaint notion that all species arrived fully-formed and immutable from the hand of God and are static, but that's a whole other topic.
Still, it kind of works, especially in theory. In practice for one "common" name you might have an apparently endless succession of scientific names as taxonomy is shuffled around, so some of the alleged benefits are gobbled up over time. Still, it is how we do things. No two people pronounce everything the same but at least when you read it you should be able to make some kind of sense of it. This list will grow as I grapple with trying to make the obscure obvious, especially to myself. Sometimes understanding the scientific name is very helpful with identification.
Note - endings can be variable as they are in most languages, notably Greek and Latin. Declension of classic languages is beyond the scope of this dictionary :)
Still, it kind of works, especially in theory. In practice for one "common" name you might have an apparently endless succession of scientific names as taxonomy is shuffled around, so some of the alleged benefits are gobbled up over time. Still, it is how we do things. No two people pronounce everything the same but at least when you read it you should be able to make some kind of sense of it. This list will grow as I grapple with trying to make the obscure obvious, especially to myself. Sometimes understanding the scientific name is very helpful with identification.
Note - endings can be variable as they are in most languages, notably Greek and Latin. Declension of classic languages is beyond the scope of this dictionary :)
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A collection of Bryo pics from Cullaloe LNR, fife
LIVERWORTS
Conocephalum conicum, Great Scented Liverwort
BBS FG page
Diplophyllum albicans, White Earwort
BBS Field Guide page
Frullania tamarisci, Tamarisk Scalewort
BBS field guide page
Lophocolea bidentata, Biphid Crestwort
L. bidentata is delicate and translucent, pale green, with conspicuously bilobed leaves (about 2 mm long). Shoots are 2–4 mm wide, and may grow several centimetres long. Its leaf lobes are long and drawn out into a narrow point. The underleaves are also bilobed, with an additional lateral tooth on each side. It is strongly aromatic, and often fertile, with toothed perianths (BBS Field Guide).
Metzgeria furcata, Forked Veilwort
Pellia epiphylla, Overleaf Pellia
BBS FG Page
Radula complanata
Scapania undulata, Water Earwort
MOSSES
Atrichum undulatum, Catherine's Moss
BBS Field Guide Page
Aulacomnium anrdrogynum
Brachythecium rutabulum, Rough-stalked Feather-moss
Bryum capillare, Capillary Thread-moss
BBS Field Guide page
Calliergonella cuspidata, Pointed Spear-moss
One of our commonest and most recognizable mosses. It is medium-sized and grows mixed with other bryophytes, or it forms green, yellow-green or occasionally orange-brown patches. Shoots are commonly 3–8 cm long, but sometimes more. The main stem is usually erect and has side branches that are more or less pinnately arranged, the whole shoot having a flattened appearance. The most distinctive field character is the shape of the shoot and branch tips: the leaves are closely rolled-up to form a smooth needle-like or spear-like point.
Campylopus introflexus, Heath Star-moss
Cirriphyllum piliferum, Hair Pointed Feather-moss
BBS Field Guide page
Climacium dendroides, Tree-moss
BBS FG page
Dicranum scoparium, Broom Fork-moss
BBS FG page
http://www.dr-ralf-wagner.de/Moose/Dicranum_scoparium-englisch.html
Dicronella heteromalla, Silky Forklet-moss
Fissidens taxifolia, Great Pocket-moss
BBS Field Guide page
Grimmia Pulvinata, Grey Cushion Moss
G. pulvinata is a predominantly lowland species of usually base-rich rocks, including walls; rarely it grows on trees and shrubs. G. pulvinata tolerates moderate pollution, so is a characteristic urban and suburban species, growing on wall tops, mortar, tombstones, asbestos roofs and concrete, and is a typical member of the wall community alongside Tortula muralis, Schistidium crassipilum and Orthotrichum anomalum. The neat cushions on wall tops have earned it the alternative common name of ‘Hedgehog Moss (BBS Field Guide).
Hylocolium splendens, Glittering Wood-moss
BBS Field Guide page
Hypnum Cupressiforme, Cypress-leaved Plait-moss
BBS Field Guide page
Kindbergia praelonga, Common Feather-moss
BBS Field Guide page
Mnium hornum, Swan's Neck Thyme-moss
This dark, dull green moss is the commonest species of the genus and one of Britain’s commonest mosses. The upright stems are 2–4 cm tall. Leaves are typically about 4 mm long, but can be as long as 8 mm towards the tip of the shoot, and have a toothed border of long, narrow cells. The nerve usually ends a little below the tip of the leaf. The leaf base at most shortly runs down onto the stem. The lower part of the stem has small, narrowly triangular leaves (the two leaves on the right in the upper drawing). Capsules (5 mm long) are frequently produced, and the lid narrows abruptly into a very short point. The seta is 2.5–5 cm long (BBS FG).
Orthotrichum anomolum, Anomalous Bristle-moss
Orthotrichum affine, Wood Bristle-moss
BBS field guide page
Orthotrichum pulchellum
Plagiomnium undulatum, Hart's-tongue Thyme-moss
BBS Field Guide page
Polytrichum commune, Common Haircap Moss
Well-grown, large, hummocks or turfs of this species are unmistakable. They consist of tough, wiry shoots up to 40 cm long (usually about 20 cm). When moist, the 8–12 mm long, narrowly spearhead-shaped leaves spread or strongly curve away from the stem, with a glossy sheathing base, giving a starry appearance viewed from above (BBS Field Guide).
Pseudoscleropodium purum, Neat feather-moss
This is one of the easiest mosses to recognize in the field. It is a robust, green or yellow-green plant with more or less regularly pinnate shoots to 10 cm or more long, and relatively short branches (the shoots are therefore feather-like). The leaves are erect, loosely appressed and overlapping, only a little longer than wide, and deeply concave. This gives the typically 2 mm wide shoots a stout, fat appearance. The leaves are about 2 mm long, broadly rounded or broadly pointed, and their most distinctive feature is the presence of a small, recurved point at the tip. At the tip of the stem and new branches, the crowded points of the leaves protrude like a miniature crown (older branch tips may become more attenuated). The leaves have a single nerve. Branch leaves are similar to the stem leaves, but a little smaller. Capsules are rare (BBS Field Guide).
Racomitrium lanuginosum, Woolly Fringe-moss
BBS Field Guide page
Rhyzomium punctatum, Dotted Thyme-moss
BBS Field Guide page
Rhytidiadelphus squarrosus, Springy Turf-moss
The shoots of this extremely common moss are a few to 10–15 cm long, and distinctive in the way the tapered part of the 2–2.5 mm long leaves bend back at a right angle to the base so that they spread out and away from the stem in all directions, giving shoots a star-like appearance. The broad leaf base completely sheathes the red stem so that it is only visible through the leaves. The leaf has lightly toothed margins and a short, double nerve. Capsules are generally uncommon, but frequent in some areas of south Wales, and may be overlooked elsewhere (BBS FG)
Sanionia uncinata, Sickle-leaved Hook-moss
Thuidium tamariscinum, Common Tamarisk-moss
BBS FG page
Tortula muralis, Wall Screw-moss
BBS field guide page
Trichostomum brachydontium, Variable Crisp-moss
(?)
This moss forms yellow-green to dark green patches or tufts 1–4 cm tall. Its tongue-shaped leaves are 2–4 mm long and typically have a blunt tip with a shortly excurrent nerve. However, T. brachydontium is very variable, and the leaves can sometimes be slender with a tapering tip. The leaves are held at an angle of up to 45° or are recurved away from the stem when moist, but crisped and incurved when dry. The leaf margins are normally plane, but may be narrowly recurved. The oval-oblong or narrowly elliptical capsules are rare in spring, and borne on a yellow seta (BBS Field Guide).
Conocephalum conicum, Great Scented Liverwort
BBS FG page
03/12/2013 |
Diplophyllum albicans, White Earwort
BBS Field Guide page
17/01/2014 |
Frullania tamarisci, Tamarisk Scalewort
BBS field guide page
Lophocolea bidentata, Biphid Crestwort
L. bidentata is delicate and translucent, pale green, with conspicuously bilobed leaves (about 2 mm long). Shoots are 2–4 mm wide, and may grow several centimetres long. Its leaf lobes are long and drawn out into a narrow point. The underleaves are also bilobed, with an additional lateral tooth on each side. It is strongly aromatic, and often fertile, with toothed perianths (BBS Field Guide).
18/11/2013 |
19/11/2013 |
underside |
underside close-up |
overlapping leaves |
Metzgeria furcata, Forked Veilwort
19/11/2013 |
Pellia epiphylla, Overleaf Pellia
BBS FG Page
11/12/2013 |
Male parts |
Scapania undulata, Water Earwort
26-01-2014 |
MOSSES
Atrichum undulatum, Catherine's Moss
BBS Field Guide Page
11/12/2013 |
Aulacomnium anrdrogynum
Brachythecium rutabulum, Rough-stalked Feather-moss
13/11/2013 |
Bryum capillare, Capillary Thread-moss
BBS Field Guide page
Calliergonella cuspidata, Pointed Spear-moss
One of our commonest and most recognizable mosses. It is medium-sized and grows mixed with other bryophytes, or it forms green, yellow-green or occasionally orange-brown patches. Shoots are commonly 3–8 cm long, but sometimes more. The main stem is usually erect and has side branches that are more or less pinnately arranged, the whole shoot having a flattened appearance. The most distinctive field character is the shape of the shoot and branch tips: the leaves are closely rolled-up to form a smooth needle-like or spear-like point.
27/11/2013 |
Campylopus introflexus, Heath Star-moss
18/01/2014 |
and when dried |
BBS Field Guide page
10/01/2014 |
Climacium dendroides, Tree-moss
BBS FG page
29/30/2013, cpt-7a |
Dicranum scoparium, Broom Fork-moss
BBS FG page
http://www.dr-ralf-wagner.de/Moose/Dicranum_scoparium-englisch.html
29/11/2013 - Mossy Barrens, Cpt-7a |
Dicronella heteromalla, Silky Forklet-moss
Fissidens taxifolia, Great Pocket-moss
BBS Field Guide page
17/01/2014 |
Grimmia Pulvinata, Grey Cushion Moss
G. pulvinata is a predominantly lowland species of usually base-rich rocks, including walls; rarely it grows on trees and shrubs. G. pulvinata tolerates moderate pollution, so is a characteristic urban and suburban species, growing on wall tops, mortar, tombstones, asbestos roofs and concrete, and is a typical member of the wall community alongside Tortula muralis, Schistidium crassipilum and Orthotrichum anomalum. The neat cushions on wall tops have earned it the alternative common name of ‘Hedgehog Moss (BBS Field Guide).
18/11/2013 |
Hylocolium splendens, Glittering Wood-moss
BBS Field Guide page
27/11/2013 |
Hypnum Cupressiforme, Cypress-leaved Plait-moss
BBS Field Guide page
08/12/2013 |
Kindbergia praelonga, Common Feather-moss
BBS Field Guide page
Mnium hornum, Swan's Neck Thyme-moss
This dark, dull green moss is the commonest species of the genus and one of Britain’s commonest mosses. The upright stems are 2–4 cm tall. Leaves are typically about 4 mm long, but can be as long as 8 mm towards the tip of the shoot, and have a toothed border of long, narrow cells. The nerve usually ends a little below the tip of the leaf. The leaf base at most shortly runs down onto the stem. The lower part of the stem has small, narrowly triangular leaves (the two leaves on the right in the upper drawing). Capsules (5 mm long) are frequently produced, and the lid narrows abruptly into a very short point. The seta is 2.5–5 cm long (BBS FG).
15/11/2013, oak trunk and field layer |
01/01/2014 |
Orthotrichum affine, Wood Bristle-moss
BBS field guide page
Orthotrichum pulchellum
04/01/2014 |
Plagiomnium undulatum, Hart's-tongue Thyme-moss
BBS Field Guide page
30/11/2013 |
Polytrichum commune, Common Haircap Moss
Well-grown, large, hummocks or turfs of this species are unmistakable. They consist of tough, wiry shoots up to 40 cm long (usually about 20 cm). When moist, the 8–12 mm long, narrowly spearhead-shaped leaves spread or strongly curve away from the stem, with a glossy sheathing base, giving a starry appearance viewed from above (BBS Field Guide).
26/10/2013, cpt-6 |
Pseudoscleropodium purum, Neat feather-moss
This is one of the easiest mosses to recognize in the field. It is a robust, green or yellow-green plant with more or less regularly pinnate shoots to 10 cm or more long, and relatively short branches (the shoots are therefore feather-like). The leaves are erect, loosely appressed and overlapping, only a little longer than wide, and deeply concave. This gives the typically 2 mm wide shoots a stout, fat appearance. The leaves are about 2 mm long, broadly rounded or broadly pointed, and their most distinctive feature is the presence of a small, recurved point at the tip. At the tip of the stem and new branches, the crowded points of the leaves protrude like a miniature crown (older branch tips may become more attenuated). The leaves have a single nerve. Branch leaves are similar to the stem leaves, but a little smaller. Capsules are rare (BBS Field Guide).
26/10/2013, cpt-7a |
Racomitrium lanuginosum, Woolly Fringe-moss
BBS Field Guide page
04/01/2014 |
Rhyzomium punctatum, Dotted Thyme-moss
BBS Field Guide page
11/12/2013 (see also Pellia epiphylla pic) |
Rhytidiadelphus squarrosus, Springy Turf-moss
The shoots of this extremely common moss are a few to 10–15 cm long, and distinctive in the way the tapered part of the 2–2.5 mm long leaves bend back at a right angle to the base so that they spread out and away from the stem in all directions, giving shoots a star-like appearance. The broad leaf base completely sheathes the red stem so that it is only visible through the leaves. The leaf has lightly toothed margins and a short, double nerve. Capsules are generally uncommon, but frequent in some areas of south Wales, and may be overlooked elsewhere (BBS FG)
09/11/2013 |
Sanionia uncinata, Sickle-leaved Hook-moss
Thuidium tamariscinum, Common Tamarisk-moss
BBS FG page
01/01/2014 |
Tortula muralis, Wall Screw-moss
BBS field guide page
Trichostomum brachydontium, Variable Crisp-moss
(?)
This moss forms yellow-green to dark green patches or tufts 1–4 cm tall. Its tongue-shaped leaves are 2–4 mm long and typically have a blunt tip with a shortly excurrent nerve. However, T. brachydontium is very variable, and the leaves can sometimes be slender with a tapering tip. The leaves are held at an angle of up to 45° or are recurved away from the stem when moist, but crisped and incurved when dry. The leaf margins are normally plane, but may be narrowly recurved. The oval-oblong or narrowly elliptical capsules are rare in spring, and borne on a yellow seta (BBS Field Guide).
21/11/2013 |
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