Friday, November 18, 2011

Sample # 14



Name: Herbertus aduncus
Family: Herbertaceae
Collection Date:- 10-12-2011
Habitat: decaying wood
Location: Field Station
Description: Medium sized green plants, grow on soil
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.
1b. Plants thalloid or, if with stems and leaves, the larger leaves in two rows on the stem and third row of leaves often present on the underside of the stem (amphigastra), never on the upper side of the stem, leaf cells isodiametric and rhizoids unicellular; sporophyte short-lived with elaters present or absent in the capsule. Class II. Hepaticae. ……4
4b. Plants thalloid or leafy, with more than one chloroplast per cell; sporophyte with a sphaerical or ellipsoidal capsule…..5
5b. plants slightly flattened, distinctly divided into stem and leaf………..8
8b. archegonia at the end of the thallus, terminating its further growth, with only one developing into sporophyte, usually surrounded at the base by a perianth; sporophyte with capsule rupturing regularly into four valves…………..9
9a Rhizoids present; wall of capsule 2-10 cells thick…….(p.232)Jungermanniales
Jungermanniales
1b. Leaves entire, or toothed, or divided at tip into 2,3 or 4 lobes…..6
6a. plants robust; leaves bilobed, more or less falacate-secund, with bifurcate vitta of elongated cells extending to or beyond the middles of the lobes……………….(p.241) Herbertus
Herbertus
Herbertus aduncus
"Plants forming extensive polster or pendulous from rock faces or tree trunks, Alaska to Washington and in the Appalachians from New York to Tennessee and South Carolina."(Conrad and Redfearn, 1979)
links
http://www.sciencedirect.com/science/article/pii/S0031942296005122

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