102 THE NORTH AMERICAN SLIME-MOULDS 



Related Genus 



Trichamphora Junghuhn, p. 12. 



1838. Trichamphora, Junghuhn, FL Crypt. Javanica. 



Sporangia discoidal, above concave, saucer-shaped, stipitate; the 

 capilh'tium variable, anon physaroid, badhamioid, or even as in 

 Didy?nium. 



This genus is set up for the accommodation thus far of the single 

 species following. It differs from Physarella in the apparently con- 

 stant discoidal shape, absence of trabecules, etc. 



Trichamphora pezizoidea Jungh., op. cit. 



1838. Trichamphora pezizoidea Jungh., op. cit. 



1854. Didymium zeylanicum Berk. & Br., Hook. Jour. Bot., VI., p. 230. 



1869. Physarum macrocarpum Fuckel, Symb. Myc, p. 343. 



1875. Chondrioderma pezizoidea Rost., Mon., p. 424, tab. VIIL, Fig. 122. 



1876. Badhamia fuckeliana Rost., Mon., App., p. 2. 



1894. Trichamphora pezizoidea Jungh., List., Mycetozoa, p. 89. 



1911. Trichamphora pezizoidea Jungh., List., Mycetozoa, 2nd ed., p. 90. 



Sporangia discoidal or saucer-shaped, gregarious, stipitate, erect or 

 nodding, grayish-white, the peridium thin, breaking irregularly and 

 persistent; stipe subulate, striate, reddish brown, transparent; capil- 

 litium variable as above stated ; spores pale violet-brown, spinulose or 

 nearly smooth, about 9 fi. 



In Mycetozoa, 2nd ed., the spores are described as "dark or pale 

 purplish brown, spinose, spinulose or nearly smooth, 9-17 /x in diam- 

 eter." This would seem too great a variation even in this protean 

 species. The only specimens in our herbarium are from the Congo 

 valley. The spores are pale and nearly smooth, as in Tilmadoche 

 alba, and 9 /x. Spores 17 /x suggest immaturity; penultimate cell- 

 division. 



The synonymy above cited shows how this species has impressed 

 careful students. Doubtless in every case the reference is correct, 

 judging from the specimen each author had before him, although it is 

 hard to see how Chondrioderma might have been suggested. 



The species is evidently tropical, though reported from Europe. 



