702 HEPATIC^. (LIVERWORTS.) 



leaves usually 3-toothed at the apex. Stems flagelliferous (whence the name, 

 from pdari^, a whip or lash, anrl fipvov, Moss). 



1. HI. tl'ilobatum, Nees. Leaves ovate, antrorsely gibbous at the dor- 

 sal base, broad and acutely 3-toothed at the apex ; amphigastria 4-6-toothed, 

 tho teeth denticulate. — On the damp ground, Alleghany Mountains and north- 

 ward. Stems 3' -5' long; the foliage firm, varying from olive-green to brown- 

 ish-yellow. (Tab. 22.) (Eu) 



2. M. tridcaiticulatlim, Lindenb. Scarcely distinct from the pre 

 ceding : described as having oblong, obtuse, shorter, less oblique, and less con. 

 cave leaves, with minute and often obsolete teeth : its habitat (swamps of the 

 Southern States) is different. 



3. M. tlefleXBtm, Nees. Leaves ovate or ovate-oblong, the dorsal mar- 

 gin arched, the narrow apex 2 -3-toothed or entire ; amphigastria 2-cleft, crenate 

 or entire. — Rocky places. — Variable ; much smaller than the last, fragile, of a 

 dark brownish hue. — M. denudatum and M. ambiguum, G. L. $• N. Synop. 

 Hepat., are probably forms of this species. (Eu.) 



37. LEPIDOSIA, Nees. Creeping Scale-Moss. (Tab. 22.) 



Fructification terminal, on short proper branches arising from the under sido 

 of the stem. Involucral leaves numerous, small, broad, 2-4-toothed at the 

 apex. Perianth elongated, obtusely 3-plaited, the mouth denticulate. Calyptra 

 membranaceous. Capsule globose. Elaters with two spiral fibres. Antheridia 

 on short spike-like branches, arising from the under side of the stem, singly 

 lodged in the base of conduplicatc 2-3-cleft perigonial leaves. Stem-leaves 

 4-toothed or 4-parted. Amphigastria present. (Name from Xe7ri8Jc0, to covet 

 with scales ; in allusion to the scale-like foliage.) 



1. Li. r«* plans, Nees. Stems creeping, pinnately compound or decom- 

 pound; leaves decurved, quadrate, acutely 3 -4-toothed; amphigastria 3-4- 

 cleft. — Hilly districts, on the ground. (Tab. 22.) (Eu.) 



3§. CALYPOGEIA, Raddi. (Tab. 22.) 



Perianth none. Involucre oblong, saccate, truncate, fleshy, hairy, attached 

 by one side of its mouth to the stem, pendent. Calyptra membranaceous, partly 

 connate with the involucre. Capsule oblong, twisted ; the valves narrow and 

 contorted. Elaters with two spiral fibres. Antheridia on short lateral capitate 

 branches, one in each of the scale-like perigonial leaves. Stem-leaves entire or 

 2-toothed. Amphigastria 2-cleft. (Name compounded of KaXvg, flower-cup, 

 vtto, under, and yala, the ground; from the position of the fructification.) 



1. C TrichdmaniS, Corda. Leaves roundish-ovate, obtuse, spread- 

 ing, imbricated ; perianths imbedded in the soil. — Moist or springy places, on 

 the ground. — Foliage delicate, pale glaucous-green. (Tab. 22.) (Eu.) 



