BY L. RODWAY. 213 



1913. 



cesses very slender and longer than the exostome; cilia 

 none (?). 



A natural ^roup. distinguished from Stuveodon by the long 

 beak to the lid and the peculiar alar patch of inflated cells. 

 Of the following species the first four are very close, and 

 might well be treated as unstable forms of one. 

 Leaves small, falcate, strongly secund. 



Margin plain or with few serrulations. 



Stems short, vaguely branched ... calliferum 

 Stems elongated, closely pinnate ... callidioides 

 Margin distantly serrulate. 



Stems irregularly branched ... ... tenuirostre 



Stems long, closely pinnate cervicidatum 



Margin regularly serrulate cyparioides 



Leaves larger, slightly secund. 



Margin serrulate, livid or green ... Joliffii 



Margin plain, golden brown homomalhim 



Leaves not secund crassiusculum 



Rhaphidostegium callifertun Hpe. et Geh. 



Yellow, decumbent, with numerous pinnate short 

 branches, forming close mats. Leaves erecto^patent, 

 secund, base broad, attenuated upwards to a slender recurv- 

 ed apex, 1.7 mm.; margin plain; nerve none; cells long 

 vermiform, two or three at the angles quadrate and in- 

 flated. Seta smooth, 1.3 cm. ; capsule inclined or pendulous, 

 oblong, pale brown, 1.2 mm.; peristome pale yellow. 



Common on deadwood. 



Rhaphidosfegium callidioides Hpe. et CM. 



Habit and structure almost of B. cerincidatu7n, only less 

 robust. Leaves shining, secund, lanceolate with an at- 

 tenuated usually serrated apex, 1-2 mm., nerve none; cells 

 long vermiform, three or four at the basal angles large in- 

 flated oblong. Seta slender, 1 cm. ; capsule cernuous or 

 pendulous, not exceeding 1 mm. ; peristome 23ale yellow. 



Near PoTt Cygnet. 



Uhaj^hidostegium tenuirostre (H.f. et W.) 

 Syn. : Hi/pnum tenuirostre H.f. et W. 

 Pale greenish yellow, decumbent, with numerous, irregu- 

 larly pinnate branches. Leaves shining, patent, secund, 

 falcate, base ovate-oblong, tapering above intO' an attenu- 

 ated apex, 1.2 mm. ; margin distantly serrulate, nerve 

 none; cells long vermiform with 3 large oblong inflated 

 cells at the angles. Seta red, slender, 2 cm. 

 Common on deadwood. 



