35^ CRYPH/EACE^. 



more elongated. No distinct vaginula. Calyptra small, conical, 

 mitriform, rough at apex or throughout. Capsule sessile or sub- 

 sessile, not exserted. Peristome double, single, or none. 



81. CRYPH.SJA Mohr. 



Stems sub-pinnately branched, branches unequal, irregular. 

 Leaves imbricated in several rows, ovate-acuminate, single- 

 nerved, cells bnort, rounded or somewhat oval, slightly papillose. 

 Inflorescence autoicous. Capsule immersed or emergent, oval- 

 oblong, abruptly narrowed at base. Calyptra rough, conical- 

 campanulate, laciniate at base. Annulus present. Peristome 

 double; outer of 16 linear-lanceolate teeth, confluent at base, 

 inner of 16 narrow, filiform processes from a very short basal 

 membrane. 



The plants of this genus grow on the bark of trees, more 

 rarely upon rocks ; the habit is somewhat peculiar, and the sub- 

 sessile, not exserted capsules are characteristic. From the other 

 pleurocarpous mosses with non-exserted fruit it is readily known ; 

 from Fontinalis by the areolation, from Neckera by the not 

 complanate leaves ; while Hedwigia differs in the nerveless, often 

 hyaline-pointed leaves and the absence of peristome. 



1. Oryphaea heteromalla Mohr. (Neckera heteromalla Hedw. ; 

 Cryphsea arborea Lindb.) (Tab. XLIX. A.). 



Secondary stems erect, rigid, with somewhat pinnate, slender 

 branches ; dark or olive green. Leaves closely imbricated, 

 especially when dry, spreading when moist, widely ovate, shortly 

 acuminate , more or less acute or rather obtusely pointed, concave, 

 excavate at base, margin entire, recurved in the lower half ; nerve 

 strong, % length of leaf ; cells rounded or oval, incrassate, 

 slightly papillose, a few at mid-base elongate, narrowly elliptic. 

 Capsules numerous, on one side of the stem, immersed ; peri- 

 cha^tial bracts long, acuminate, or obtuse with the nerve 

 excurrent, thin, pale, with narrower, longer cells. Capsule 

 yellowish brown ; lid orange, narrowly conical ; peristome pale 

 green. 



Var. /?. aquatilis Schp. (Pilotrichum heteromallum var. 

 aquatile CM.). Dark green; stems elongated, less branched, 

 floating in water ; leaves wider, obtusely pointed, margin almost 

 plane. 



Hab. Trunks of trees, frequent. The var. 0, Devonshire. Fr. early summer. 



