xiii, c, 4 Yates: Fungi from British North Borneo 237 



HYPOCREACEAE 



MEGALONECTRIA Spegazzini 



MEGALONECTRIA PSEUDOTRICHIA (Schw.) Speg. in Anal. Soc. Cienc. 

 Argent. 12 (1881) 217. 

 Sphaerostilbe pseudotrichia B. & Br. in Journ. Linn. Soc. Bot. 14 (1875) 



114. 

 Nectria pseudotrichia B. & C. in Journ. Acad. Phila. II 2 (1835) 289. 

 Spkaeria pseudotrichia Schw. in Berk. & Curt. Journ. Acad. Phila. II 



2 (1853) 289 (as synonym). 

 British North Borneo, Tenom, Yates 86, October 16, 1917, on dead 

 branches of Hevea brasiliensis. 



This is very abundant on dead branches lying on the ground and is 

 often associated with Diplodia cacaoicola. 



HYPOCREA Fries 

 HYPOCREA BORNEENSIS sp. nov. 



Stromatibus gregariis, sessilibus, convexo-pulvinatis, 3 ad 6 

 mm diametro, extus brunneis, intus pallide brunneis ; peritheceis 

 globosis, immersis, ostiolis punctiformibus, brevis, ascis cylin- 

 draceis, aparaphysatis, 70 ad 80 X 5 ad 6 p., 8-sporis (simulate 

 16-sporis) ; sporidiis monostichis e duabus cellulis aequalibus 

 compositis, mox deeedentibus, cellulis singulis globosis, hyalinis, 

 4 ad 5 p diametro. 



British North Borneo, Membakut, Yates 100, October 9, 1917, on de- 

 caying log of Hevea brasiliensis. 



PHYLLACHORACEAE 



PHAEODOTHIOPSIS Theissen et Sydow 

 PHAEODOTHIOPSIS PTEROCARPI ,sp. nov. 



Stromatibus epiphyllis, numerosis ca. 0.5 ad 1.5 mm diametro, 

 dispersis, carbonaceis, hemisphaerico-pulvinatis, laevibus, atris, 

 in maculis fuscidulis, 2 ad 3 mm diametro dispositis; loculis ca. 

 6 ad 12, 80 ad 120 p diametro, globosis; ascis cylindraceis, 50 

 ad 60 ,u. longis, 10 p latis, 8-sporis, paraphysatis ; sporidiis dis- 

 tichis, oblongis, utrinque rotundatis, brunneis, ad basim 1-septa- 

 tis, constrictis, cellula superiore 10 X 12.5 p, inferiore 3 ad 4 

 p longa et 3 p lata. 



British North Borneo, Tenom, Yates 10b, October 17, 1917, on leaves 

 of Pterocarpus indicus. 



This species is very abundant on the leaves of Pterocarpus, associated 

 with Meliola pterocarpiae Yates, The 2-celled brown spores readily dis- 

 tinguish it from the other Phyllachoraceae reported upon this host. Co- 

 nidia are borne on the younger stromata. They are subglobose or 

 somewhat irregular in shape, brown and about 10 to 12 m diam. 



