oious. AntliorUUa imraorscff in imbcildcff disks at tlio apex of tho firm and rigid
koolod frond. (Named for D. Grimaldi, an Italian botanist.)
1. tï. l>:1irt>il'roils, Biseboil'. Stoins linoar-wedgo-sbapod, li" -C " lo n g ,
snbdiobotomoiis, 2-lobod at tho apex, ohamielled and jialo green above, witli
whitish pores visible to tho naked cyo, purplo beneath ; peduaele profusely palca-
ccou.s at its base and apex ; monoecious ; stamimito disks obcordate. — Iowa,
Dr. llor. (Tab. V II.) (Eu.)
2. G. séssilis, n. sp. Agrees with tho preceding, except that it is one
third smaller; the pores of the frond not visible; the fertile receptacle (the capsule
being fully mature) sessile, and entirely concealed by a dense mass of purplish
palcoe; antheridia not scon. — Texas, C. Wright.
11. FIMBKIÀBIA, Noes. S m a l l L i v e k w o k t . (Tab. VI.)
Fertile receptacle liemisplierical, concave beneath, expanded at the margin into
4 largo and pendent bcU-shaped l-fruitcd involucres. Periantli oblong-oval,
projcctihg half its length beyond the rim of the involucre ; the projecting portion
splitting lengthwise into 8 -1 2 usually free, fringe-like segments, Calyp-
tea with a long style, fugacious. Capsule sessile, globose, dehiscing by an irregular
circumcissile line near the middle. Spores mnricato. Elaters rather short.
Inflorescence monoecious. Antheridia immersed in the substance of tho frond,
not collected into disks. Ei-ond much thickened in tho middle, with a kecl-like
midrib. (Name bom Jimbria, a fringe, alluding to the perianth.)
1. F . t e n é l l a , Nees. Erond elongated-wedge-shaped, nearly simple,
notched at the end (6 " -1 0 " long, 2 " - 4 " wide), green above, pmple on tho
margins and underneath. (F. moUis, Tagl. ) — Alleghany Mountains, in shady
places. (Tab. VI.)
0, J i , é l e g a i l S j Spreng, Much smaller than No. 1 ; remarkable for the
very prominent papillæ of the fertile receptacle ; the lobes of the periantli cohering
a t the apex into a short tube. — Texas, O. WrigM. (Eu.)
1 2 . P I , A G I O C H Á S M A , Lehm. & Lindenb. (Tab. VI.)
Fertile receptacle arising from the back of the frond, deeply 2-4-lobed; lobes
ascending. Involucres very large, subcompressed-ovoid, erect, 1-fruited, opposite
to and conceaHng the minute lobes, 2-valved, dehiscing by a vertical slit.
Perianth none. Calyptra fngacious. Capsule globose, subsessile, horizontal,
mpturing at the apex by an irregular line. Spores enveloped m a transparent
rugose membrane. Elaters of medium length. Antheridia immersed in sessile
disks at the end or in the middle of the frond. Erond rigid, thick. (Name
composed of irXáyios, placed sideways, and refening to the lateral
dehiscence of the involucre.)
1. F . W r ig h t i i , n. sp. Frond 5 " -1 0 " long, l J " - 2 " broad, continuous
at the apex, glaucous above, with dark purple scales beneath, the margins crenulate,
ascending, convolute; involucres usually three; peduncle scarcely one
fine high, paleaceous at the apex and base, — Under overhanging rocks, along
streams; Texas, C. Wright. (Tab. VI.)
SuiiOKDnit IV. JU 1V G E K 1W A N 1V IÀ C EÆ . S c ai.i>Mosses .
E ith e r frondose or foliaceous : Ieavo.s when distinct 2-rankod, and often
with a th ird row of smaller one.s (amphigastria) on tho un d er side o f the
stem. Capsule on a cellular pedicel, dehiscent lengthwise into 4 valves,
I. Vegetation frondose (stem and leaves confluent in a frond).
E Î . M E T J B G È K I A , Kaddi. (Tab, VII.)
Fertile fructification arising from the lower surface of the midrib of the frond.
Involucre l-leavcd, scale-like, at length ventricose and 2-lobed. Perianth none.
Calyptra ascending, oblong-obovate, rather fleshy. Capsule ovate. Elaters
witli one spiral fibre, adherent to the tip of the valves. Inflorescence dioecious ;
antheridia 1 -3 , enclosed by a 1-leavcd involucre on the under side of the midrib.
Ovate gemmæ aggregated on the attenuated tips of the linear frond : midrib
distinct, (Named for J. Metzger, a German botanist.)
1. M. f u r c à t a , Nees, Fronds linear, thin and membranaceous, forking
or proliferous, with white peUucid hairs ou the iriargins, and beneath on the
midrib ; calyptra hispid. — Hilly districts, on rocks and the bark of trees. (Tab.
VII.) (Eu.)
2. M . p i i k é s c e n s , Eaddi. Larger than the last, pubescent on both
surfaces. — Mountainous localities. (Eu.)
14. A N E È B A , Dumortier. (Tab. VH.)
Fructification arising from the under side near the margin of the frond. Involucre
cup-shaped, very short and lacerate, or none. Perianth none. Calyptra
ascending, nearly cylindrical, fleshy. Capsule oval or oblong. Elaters
adherent to the apex of the valves, containing a single broad spiral fibre. Inflorescence
dioecious. Antheridia immersed in the upper surface of receptacles
proceeding from the margin of the frond ; which is fleshy and destitute of a
midrib (whence the name, from a privative, and vevpov, a nerve).
1. A . séssilis, Sprengel? Fronds irregularly lobed ( l ' - 2 ' long, 3 " - 5 "
wide); involucre none ; calyptra papillose at the apex; pedicel 9 " -1 2 " lo n g ,
sometimes folded upon itself and remaining within the calyptra, thus making
the capsule appear sessile ; sterile receptacles elongated, and tapermg deflexcd
processes. (Mem. Amer. Acad. n. ser. 3, p. 62, t. 5.) — Rotten logs, margins of
swamps, Ohio ; rare as high as lat. 40 ; very common in the Sonthem States. —
This may not be Sprengel’s plant, the leaves of which are described as having
large oblong areolæ, and the calyptra as being smooth. (Tab. YII.)
2. A . p il lg é l lis , Dumort. Much like the last; frond more linear and
simple ; involucre short and lacerate ; sterile receptacles 2-lobed, lobes obtuse.
— Among Sphagnum, in the Southern States {Schiceinitz) ; and in Ohio. Fruit
not seen. (En.)
3. A. p a l m à t a , Nees. Fronds usually crowded ( 2 " -3 " high), ascending,
paliiiately divided, the divisions linear and obtuse ; sometimes prostrate and
creeping extensively ; calyptra tuberculate. — Rotten logs, &c. ; common. (Eu.)
58*