166 A Monograph of the Myxogastres. 



stem thin, length variable, yellow, often reddish at the base, 

 filled with large, glolosc, or mlangular cells, ivliich jmss upwards 

 into normcd spores; mass of spores clear yellow, ochraceous- 

 orange, or tinged with olive ; threads of capillitium 4 — 5 fx 

 thick, forked repeatedly and combined into an irregular open 

 net, free ends not mcmeo'ous, obtuse, sometimes sligldly swollen, 

 spirals thin, not prominent, rather distant ; spores globose, very 

 mimdely and irregularly reticidated, 8 — 10 fx diameter. 



Hcmiarcyria clavata, Rost., Mon., p. 264, figs. 205, 207, 210, 

 238; Cke., Myx. Brit., p. 68, figs. 205, 207, 210, 238; Sacc, 

 Syll, vii., 1, n. 1513; Mass., Mon. Trich., p. 31 ; Raunk., Myx. 

 Dan., p. 64; Schroeter, p. 114. 



Exsiee. — Fckl., F. Rhen., 1434; Jack, Leiner u. Sitzenb, 

 Krypt. Badens., 621 ; Ellis, N. Amer. Fung., 523. 



On decayed wood, &c. Britain (King's Cliffe, Apethorpe, 

 Scarboro', Carlisle) ; France ; Germany ; Denmark ; United 

 States ; Cuba ; Brazil ; Ceylon ; Benin Islands. 



Scattered or gregarious, 1'5 — 2 mm. high, stem slender, often 

 attenuated downwards and longitudinally wrinkled, sometimes 

 very short, especially when the sporangium is almost globose. 



The spores are usually covered with very thin, slightly raised 

 ridges combined into a very fine, irregular network, but the 

 ridires are sometimes short and distinct or even wart-like. 



(Rostafinski's Synonyms.) 



Clathrus 2Jedcdits, Schm. Ic, t. 33, f. 1, 17 (1776). 

 Sphaerocarj)US iiyriformis, Bull., t. 417, f. 2 (1791). 

 Stemonitis pyriformis, Gmel. Sys., 1469 (1791). 

 TricJda pyri/ormis, Sibth. Fl. Ox., 406 (1794); Sow., 400, f. 6. 

 Triehia clavata, Pers. Disp., p. 11 (1797) ; Eng. Fl., v., 320 ; 



Cooke, Hdbk., 1183. 

 Ti'ichia citrina, Schum. Saell., 1460 (1803). 

 Arcyria trichioidcs, Rudolph, Linnaea, p. 120 (1829). 

 Triehia erythropiis, Borszczow (1856). 

 Triehia oUusa, Wigand, p 30, t. 11, f. 4 (1863). 

 Triehia Thwaitcsii, B. and Br., Ceylon Fung., No. 776 (1873). 



