364 FETCH : 



diameter, or slightly elongated, 1-5 mm. long, and 0*5 mm. 

 broad ; the capillitium is greenish -yellow in mass, a network 

 of threads, 5 to 6 /^ diameter, with four or five narrow, close 

 set, regular bands, and bulbous, or merely rounded free ends ; 

 spores 10 to 12 /* diameter, minutely warted, umber in mass ; 

 sporangium wall membranous, with scanty granular deposits. 

 " It agrees with T. lutescens in the membranous sporangium 

 wall, and with H. intorta var. leiotricha in the Hemitrichia 

 character of the capillitium " (Lister, in litt.). 



Hemitrichia clavata, Rost. 



Trichia Thwaitesii, B. & Br., Fungi of Ceylon, No. 776. 

 "Arcyria umbrina, Schuni.," in B. & Br., Fungi of Ceylon, 

 No. 773. Arcyria clavata, Mass., Mon. , p. 166. Trichia 

 clavata, P., in B. & Br., Fungi of Ceylon, No. 1200. 



Thwaites' 22, B. & Br. 776, Trichia Thwaitesii, is Hemit- 

 richia clavata at Kew, but the same Thwaites' number is Hemit- 

 richia ruhiformis in Herb. Peradeniya ; the description appears 

 to refer to H. clavata. This species is very common in Ceylon, 

 and typical. 



Peradeniya, Talawakelle, Hunugalla, Pattipola, Hakgala, 

 Badulla, Urumuwela, &c. 



Hemitrichia Karstenii, Lister. 



Hemiarcyria Karsteni, Rost., in B. & Br., Fungi of Ceylon, 

 No. 1199. Arcyria Karstenii, Rost., in Massee, Mon., p. 168. 



" Rostafinski's type specimen from Ceylon (K. 1773) has 

 pale yellow-brown sporangia and rugged capillitium, with 

 faint spirals and many large rounded expansions ; the spores 

 are yellow, minutely warted, and measure 10 to 11 M diameter " 

 (Lister, Mon. , p. 179). This species has not been re-discovered 

 in Ceylon (see Perichcena depressa). 



Hemitrichia serpula, Rost. 



Trichia serpula, P., in B. & Br., Fungi of Ceylon, No. 777. 

 Arcyria serpula, Mass., Mon., p. 165. 



A common species. The netted plasmodiocarp sometimes 



extends over an area 4 or 5 cm. long and 2 or 3 cm. broad ; 



in some specimens it is seated on a red-brown hypothallus. It 



soon bursts when ripe, and the capillitium is often blown away 



