Name: Concephalum Conicum
| Family: Conocephalaceae |
Collection Date:- 10-05-2011
Habitat: on a rock in a cave
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
1a. Air pores visible without lens, each in a polygonal area; capsules borne on the underside of an umbrella-shaped receptacles, with spirally banned elaters among spores; walls of capsules with ring-shaped thickenings………………..8
8b. Thalli without gemmae, and without marginal scales on underside…….10
10a. Air pore on a low mound of colorless cells; antheridia in a warty spot on the thallus; sporophytes beneath a cone-shaped umbrella…………….(p.283)Concephalum
Concephalum Conicum
"Thalli pale to dark green above, purplish below, 1-2cm wide, dichotomously branching upper surface with distinct polygonial areas, on mosit rocks, and soil, wide spread in North America."
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