152 BRYACE^. [Hedwirjia. 



48. HEDWIQIA, Ehrh. (PL 2.) 



Stems dichotomous and fastigiate-ramose, radiculose at base. 

 Leaves 8-ranked, pai^illose especially on the back ; cells of the 

 areolation all in distinct series, very small, quadrate or rect- 

 angular, more elongated and sublinear in the middle of the 

 lamina toward the base only. Flowers gemmiform, monoecious. 

 Calyptra conical-mitrate, entire, covering the lid only, fugacious. 

 Capsule globose, immersed in the jDerichsetium. Lid broadly 

 convex. 



1. H. ciliata, Ehrh. Loosely cespitose, pale green : leaves 

 spreading all around, curved up at the apex, or turned to one 

 side, densely imbricate when dry, concave, oblong-lanceolate, 

 narrowed to a short apex rendered pellucid by the absence of 

 chlorophyll, crenulate on the borders, subdecurrent and yel- 

 lowish at the point of insertion ; perichoetial leaves diaphanous, 

 longer-acuminate, flexuous, ciliate on the borders: calyptra 

 smooth or with a few hairs : capsule globose, light brown, red 

 at the orifice ; collum short, inflated ; lid plano-convex with or 

 without mamilla. — Hann. Magaz. 1781, 109 ; Hedw. Muse. 

 Frond, i. 109, t. 40 ; Bryol. Eur. t. 272, 273. Bryum ciliaticm, 

 Dicks. Crypt. Fasc. iv. 6. Pilotrichum ciliatum, Muell. Syn. 

 ii. 164. 



Var. leucophsea, Schimp. More robust and more densely 

 falcate : leaves broader, without chlorophyll, pellucid two-thirds 

 of their length. 



Var. secunda, Schimp. Stems slender, long, prostrate : 

 leaves less crowded, secund, with a short pellucid point. 



Var. viridis, Schimp. Leaves bright green to the apex or 

 nearly so. 



Var. striata, Schimp. Leaves plicate, reflexed on the 

 borders, yellowish green : lid convex-conical. 



Hab. On rocks; very common, and variable according to the localities. 

 Var. viridis is not rare on the perpendicular face of large boulders of 

 sandstone or granite in shaded or humid places. 



49. BRAUNIA, Bruch & Schimp. 



Plants widely cespitose, diffusely branching, stoloniferous. 

 Leaves, areolation, and inflorescence as in Hedioigia. Calyptra 



