88 HEPATICE. (LIVERWORTS.) 
cious. Antheridia immersed in imbedded disks at the apex of the firm and rigid 
keeled frond. (Named for D. Grimaldi, an Italian botanist.) 
. G. barbifrons, Bischoff. Stems IN a, 3/'— 6" long, 
microm 2-lobed at the apex, channelled and pale green above, with 
itish pores visible to the naked eye, purple pala peduncle profusely a 
ceous at its base and apex; moneecious; staminate disks obcordate. — Iow 
Dr. Hor. (Tab. 21.) 
2. G. -sp. Agrees with the preceding, except that it is one 
third smaller; the pores of the as not visible; the fertile receptacle (the cap- 
sule being fully mature) sessile, and entirely dicedied by a dense mass of pur- 
plish palex ; antheridia not seen. — Texas, C. Wright. 
Al. FIMBRIARIA, Nees.  Smatz Lrverworr. (Tab. 20.) 
Fertile receptacle hemispherical, concave beneath, expanded at the margin in 
to 4 large and pendent bell-shaped 1-fruited involucres. Perianth ‘eivanavel 
projecting half its length beyond the rim of the involucre; the projecting por- 
tion splitting lengthwise into 8-12 usually free, fringe-like segments. ly 
tra with a long style, fugacious. nea aes sessile, globose, dehiscing by an irreg- 
— circumceissile uae near the middle. Spores muricate. Elaters rather short. 
moneecious. fear aie immersed in the substance of the frond, 
not collected into — Frond much thickened in the enneuey ith a keel-like 
midrib. (Name from —— a fringe, alluding to the perianth.) 
Frond elongated- sedge bap mek gmc 
soiched at the end (6/— a long, aN re wide), ¢ above, p n the 
margins and underneath. (F. mollis, Tay.) aay ei Mountains, s tity 
laces. (Tab. 20.) 
2. F. élegams, Spreng. Much smaller than No. 1: remarkable for the 
very prominent papills of the fertile receptacle ; the lobes of the perianth co- 
-hering at the apex into a short tube. — Texas, C. Wright. (Eu. ) 
12. PLAGIOCHASMA, Lehm.&Lindenb. (Tab. 20.) 
Fertile receptacle arising from the back of the frond, deeply 2-4-lobed ; lobes 
uscending. Involucres very large, subcompressed-ovoid, erect, 1-fruit ed, oppo- 
. . bes. “i . . 
ength. 
disks at the end or in the middle of the frond. Frond rigid, thick. 
composed of mAdyios, placed sideways, and xdopa, a chasm, referring to the lat- 
eral dehiscence of the involucre.) 
Wrightii, p- Frond 5-10" long, 14-2” broad, continuous 
at the apex, glaucous shai, with dark purple scales beneath, the margins cren- 
ulate, ascending, convolute; involucres mae three ; peduncle scarcely one 
line high, paleaceous at the apex and base. — Under overhanging rocks, along 
; Texas, C. Wright. (Tab. 105. 
