Fig1. Trichostomum tenuirostre
Name:
Family: Pottiaceae
Collection Date:- 05-10-2011
Habitat: "
rarely on roots of trees by streams and other water courses." (Lawley 435)
rarely on roots of trees by streams and other water courses." (Lawley 435)
Location: West woods
Description: Medium sized green plants, grow on soil, rocks and rotting logs.
Collector: Getachew Hatsey
Key Used: Conard, H.S. and P.L. Redfearn, Jr. 1979. How to Know the Mosses and Liverworts 2nd Edition, McGraw-Hill, Boston, Mass.
Keying Steps:
Introduction Key pg. 19
1a. Plants with stems and leaves; leaves spaced equally around the stem or...leaf cells elongate and isodiametric...rhizoids multicellular..sporophyte long lived..........................2
2b. Plants not as above...................3
3b. plants not as above....................(p.28) Subclass 3. BRYDAE.
key to Genera Bryidae
1b. Green plants...empty cells at the base, apex, or margin of leaf.............3
3b. Leaves inserted in three or more rows, plant sometimes strongly flattened.........7
7b. plants with a peristome of more than 4 teeth or peristome teeth absent.........8
8b. Leaves well developed and persistent.............9
9b. Capsule and leaves not as above...................10
10b. Plants with a distinct stem ; capsule present with operculum......17
17b. plants large, capsule exserted; grows on trees.........20
20b. leaves without such outgrowth; sometimes with deciduous gemmae...............28
28b. Peristome when present single or double... growing on various substrates but not restricted to rich organic soil, bones, or other organic matter..........33
33a. stems erect, unbranched, or with branches erect, generally in tufts; archegonia and sporophytes terminal (may appear lateral because of innovative branches arising below the sporophytes.)...............34
34b. leaves, especially the bases, not as above..................................36
36a. Leaf cells conspicuosly bulging or bulging mammillose, at least on the upper (ventral) side, or papillose with papillae not, or scarcely, including the cell cavity, or roughned by fine longitudinal ridges............................37
37b. leaf cells papillose or steriolate................43
43b. Alar cells not enlarged and clearly differentiated..........................................45
45b. Stems strictly upright, sparcely branched; sporophytes terminal................................................54
54b. Plants usually in more extensive tufts; usually setae longer and capsule long exerted; growing on rocks and soil.....................55
55b. leaves not as above................................................56
56b. leaves lanceolate to linear-lanceolate, widest below the middle, long tapering to the apex; cells of the lower 1/4 of leaf various......................64
64a. Margins of leaves revolute or plane..........................65
65a. Peristome present, inserted at the mouth of the capsule; leaves linear-lanceolate from a broadly oblong to oblong-lanceolate base.................................................................(p.92)Trichostomum tenuirostre
"Plants in loose tufts, up to 1 cm high, yeallow green above or brown below, on moist rocks, soil, rock ledges or occasionally on decaying wood or trees, British Columbia to Ontario south to Washington, Arizona, colorado, texas, Arkansas, tennessee and South Caroline. Fourth other species occur in North America." (Conrad and Redfearn, 1979)
Links:
http://us.mirror.gbif.org/species/14169689http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=240002134
http://www.bbsfieldguide.org.uk/content/trichostomum-tenuirostre
http://www.theplantlist.org/tpl/record/tro-35179839
No comments:
Post a Comment