16 PLANTS BAKERIAN^. 



tially collapsing perithecia and in the smaller asci and 

 spores. The spores do not seem in any case to be more than 

 3-septate while in the latter species they are often 5- and 

 even 7-septate as seen in N. A. F. n. 882 and in Baker> 

 Earle & Tracy, n. 1059. 



STRICKERIA RHOINA, n. sp. Perithecia thickly scattered, 

 bases deeply buried, dull black, J-f mm., at length collapsing, 

 ostioles minutely papillate, often obscure ; asci cylindric, 

 short-stipitate, about 100-120xl(V ; paraphyses numerous, 

 thread-like, exceeding the asci ; ascospores strictly mono- 

 stichous, ovate, yellow or light-brown, at first 3-4-septate, 

 becoming 5-7-septate, one or more medial cells once verti- 

 cally divided, slightly constricted at the middle septum, 

 about 20x8/t. 



On decorticated wood of Rhus trilobata, Hermosa, March 

 29. The asci and spores are much as in Teichospora rhy- 

 podes on Rhus from Michigan, but the perithecia are twice 

 the diameter, strongly collapsing, and lack the " conic-pa pil- 

 liform " ostiolum of that species. 



STRICKERIA, sp. On decorticated Salix, Hermosa, March 

 28. The specimens are too old for satisfactory identifica- 

 tion. The spores are 7-septate, 35xl5/x. 



STRICKERIA, sp. On Quei'cus. Same place and date; not 

 in condition to be determined. 



TREMATOSPH^RIA CHRYSOTHAMNI, n. sp. Perithecia scat- 

 tered or somewhat closely gregarious in small groups, black, 

 shining, carbonaceous, nearly spherical but the top slightly 

 flattened, not collapsing, about Jmm., ostiole minutely 

 papillate ; asci clavate, 70-80x8-10/i ; paraphyses numer- 

 ous, filiform, yellowish ; ascospores distichous, light-brown, 

 somewhat fusiform, often curved, 2-4-septate, somewhat 

 constricted at the septa, 16-20x4-5/u. 



