JUNGERMANNIACEJE. (SCALE-MOSSES.) 71o 



13. ODONTOSCHISMA, Dumort. (PI. 24.) 



Leaves succubons, ovate or roundish, entire or retuse, rarely bidentate ; 

 underleaves minute, sometimes obscure or wanting. Dioecious or sometimes 

 monoecious. Fruit terminal on a short branch from the lower side of the 

 stem. Involucral leaves few, 3-ranked, bifid or rarely 3 - 4-cleft ; perianth 

 large, triangular-fusiform, ciliate or dentate. Calyptra membranous. Cap- 

 sule cyliudric-oblong. Antheridia in small whitish spikes on the under side 

 of the stem. (Name from oSovs, a tooth, and ayia^a., a deft, alluding to the 

 perianth.) 



1. O. Sphagni, Dumort. (PI. 24.) Leaves spreading or ascending, 

 ovate, rounded or oblong, entire or retuse, subcoucave ; underleaves mostly 

 wanting ; perianth 3-6 times longer than the leaves, subulate-fusiform, la- 

 ciuiate or ciliate. (Sphaguoecetis commuuis, Ne.es.} Among mosses, N. J. 

 to 111., and southward. (Eu.) 



2. O. denudata, Lindb. Stems densely rooting, somewhat leafless at 

 base, flagellate, branching above ; leaves spreading, broadly ovate, entire ; 

 underleaves broadly oval, entire or subdenticulate ; perianth close-conuivent 

 above, at length bursting irregularly. On rotten wood, Canada to Ohio, and 

 south along the mountains. (Eu.) 



14. KANT I A, S. F. Gray. (PL 24.) 



Leaves large, incubous, flat or convex, entire or retuse ; uuderleaves small, 

 roundish, the apex entire, retuse or bifid. Dioecious or monoecious. Involucre 

 pendulous, subterranean, clavate or subcyliudric, fleshy, hairy, attached to 

 the stem by one side of its mouth. Calyptra membranous, partly aduate to 

 the involucre. Capsule cylindric, the valves spirally twisted. Spores minute, 

 roughish. Antheridia solitary in the reduced leaves of short lateral branches. 

 (Name from J. Kant, a physician at The Hague.) 



1. K. Trichomanis, S. F. Gray. (PI. 24.) Creeping, without ventral 

 runners; leaves pale green, imbricate, spreading, roundish-ovate, obtuse. 

 (Calypogeia Trichomanis, Corda.) On the ground and rotten logs; very 

 common. (Eu.) Var. RIVULARIS, Aust. Leaves dusky green or blackish, 

 more scattered, flaccid; cells large. N. J. (Austin.) Var. TENUIS, Aust. 

 Very slender, innovate-branching ; leaves smaller, especially above, dimidiate- 

 ovate or subfalcate, subdecurrent. Southern N. J. (Austin). 



2. K. Sullivantii, Underw. Prostrate, with ventral runners ; leaves 

 flat, subcontiguous or imbricate, obliquely round-ovate, minutely 2-toothed 

 with a lunulate sinus, abruptly decurrent ; cells large, uniform ; underleaves 

 minute, the upper orbicular, bifid, the lower twice 2-lobed, the primary lobes 

 round-quadrate, divaricate, the secondary ovate or subulate. (Calypogeia 

 Sullivantii, Aust.) Delaware Water Gap, N. J. (Austin). 



15. SCAPANIA, Dumort. (PL 24.) 



Leaves complicate-bilobed, the upper lobe smaller, the lower succubous; 

 margins entire or dentate or ciliate ; underleaves none. Dioecious. Fruit 

 terminal. Involucral leaves like the cauline but more equally lobed ; peri- 

 anth obovate, dorsally compressed, bilabiate, the mouth truncate, entire or 

 toothed, decurved. Capsule ovate. Elaters long, attached to the middle of 



