Family: Weisnerellaceae
Collection Date:- 10-05-2011
Habitat: on soil, in the woods
Location: West Woods
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
5a. Plants strongly flattened, thalloid, with-out distinction between stem and leaf….6
6a. Plants with opaque thallus that is divided into an epidermis, loose tissue beneath the epidermis containing air spaces, and a lower solid, parenchyma-like tissue; rhizoids of two kinds, one with smooth wall and one with peg-like thickenings on inner wall; sporophytes with capsules not dividing regularly into four valves……(p. 239) Marchantiales
Marchantiales
1b. Air pores absent, or if present visible only with a strong lens…….2
2b. Plants on mosit or dry rocks or banks, rarly, if ever, in near rosetes; capsules borne on the underside of an umbrella-shaped receptacle……..4
4a Thallus without or with only vestigial pores……(p. 285) Dumortiera
Dumortiera hirsuta
"Thalli dark green to yellowish-green, without or only with vestigial pores or polygonal areas, 1-2cm wide, up to 20cm long, Oklahoma and Missouri to Pennsylvania south to Louisiana, Alabama, and Florida." (Conrad and Redfearn, 1979)
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