Trichia. 195 



(Type in Herb., Kew.) 



On mosses and logs. New Zealand. 



Scattered, 3 4 mm. high, stem about equal in length to 

 the sporangium, thin and weak, so that the sporangia are often 

 drooping. Allied to T. affinis, but distinct in the much larger 

 spores, with smaller and more numerous reticulations, and the 

 stipitate, obovate sporangia usually arranged in a botryoid 

 manner. 



Trichia Kickxii, Rost. 



Sporangia spherical, sessile, in several crmvded strata, forming 

 cakes some mm. high, and sometimes cm. long and broad; walls 

 of single sporangia rigid, flesh-colour, polished and shining; 

 elaters simple, either flexuous or curved into circles, 4'2 p thick, 

 spirals two, not very prominent ; tips obtuse ; spores with an 

 irregular network, 14 15 \i. diameter. 



Trichia Kickxii, Rost., Mon. App., p. 40 ; Sacc., Syll., vii., 1, 

 n. 1504 ; Mass., Rev. Trich., p. 345. 



I have no knowledge of the present species except from 

 Rostafinski's diagnosis, which strongly suggests to my mind a 

 species closely allied to Oligonema nitens. 



Trichia pusilla, Schroeter. 



Sporangia subglobose, very small, 0'3 0'5 mm. diameter, 

 gregarious, scattered or collected in clusters, golden or brownish- 

 yellow, smooth, shining, fragile ; hypothallus absent ; elaters 

 very short, about 100 ju, long, 4 5 p thick, here and there thick- 

 ened, apices rounded, often mucronate and curved, spirals 2 3, 

 slightly prominent, here and there inconspicuous ; spores globose, 

 unequally costulato-reticulate, 11 12/x diameter. 



Trichia pusilla, Schroeter, p. 114; Sacc., Syll., vii., 1, n. 1509 ; 

 Mass., Rev. Trich., p. 345. 



On bark. Germany. 



LITHODERMEAE. 



The most pronounced characteristic of the present section is 

 the almost universal presence of carbonate or rarely bicarbonate 



