MR. M. C. COOKE OS THE FUNGI OF TEXAS. 143 



silibus ; sporidiis clavatis vel fusoideis, 3-5-septatis, subconstric- 

 tis (03 x 007 mum.) cellulis nucleatis; parapliysibus clavatis, 

 simplicibus vel furcatis, sursum atro-cyaneis. 

 On herbaceous stems. Houston (Rav. 223). 



Hysterium (Glokium) medium, Cooke. — Peritheciis ellipticis 

 vel elongatis, utrinque obtusis, supra applanatis, atris, dense gre- 

 gariis vel subconfluentibus ; ascis cylindraceis ; sporidiis ovalibus, 

 demum uniseptatis, hyalinis ('OOS-'Ol X 004 m. m.). 



On decorticated Rerchemia. Houston (Rav. 293). 



Diatrype (Diatrypella) opaca, Cooke. — Erumpens, suborbi- 

 cularis, atro-brunnea ; ostiolis depressis, sulcatis, vix distinc- 

 tis ; ascis clavatis, longe stipitatis ; sporidiis leviter curvulis, 



numerosissimis, subluteolis. 



On Hex opaca. Houston (Rav. 243). 



In some respects resembling Diatrype quercina, but smaller, 

 neater, and in many other respects distinct. 



Diatrype rumpens, Cooke. — Elliptica, tenuis ; ostiolis vix 

 prominulis, cuticula rupta cinctis ; ascis cylindraceis ; sporidiis 

 late amygdakeformibus, atro-brunneis, opacis ('015 x '009 m. m.). 



On bark. Galveston Bay (Rav. 63). 



Diatrype exutans, Cooke. — Late effusa, nigra, subcuticu- 

 lars ; ostiolis punctiformibus, depressis ; ascis cylindraceis ; 

 sporidiis ellipticis, utrinque attenuatis, brunneis, uninucleatis 

 (015X'008m.m.). 



On bark. Galveston Bay (Rav. 76). 



Sphjeria (Immerse) botul^espora, Cooke. — Gregaria, im- 

 mersa ; peritheciis atris, elongato-compressis, poro pertusis ; 

 ascis saccatis ; sporidiis cylindraceis, rectis vel leviter curvulis, 

 utrinque obtusis, uniseptatis, fuscis, cellulis inaxjualibus (-07-08 

 X -012 in.m.). 



On old oak rails. Houston (Rav. 202). 



Sphjsria (Immerse) texensis, Cooke. — Sparsa, grisea ; peri- 

 theciis subglobosis, in ligno nigro facto immersis, vix prominulis ; 

 ascis cylindraceis ; sporidiis lanceolatis, uniseptatis, hyalinis 

 (015-006 m.m.). 



On oak rails. Houston (Rav. 250). 



SpiiiERiA (Ortect^e) pertacta, Cooke.— Subtecta, seriata ; 

 peritheciis globosis, airis, demum supra conspectis, poro pertusis; 



