NEW DIMORPHOMYCETEAE. 223 



developed on one side only, and curved upward abruptly beneath 

 the usually single secondary appendage; the, usually three, remaining 

 cells bearing the primary appendage, perithecium and secondary 

 appendage respectively. Primary appendage erect, consisting of 

 two nearly equal cells, or sometimes three, the distal terminally 

 somewhat disorganized; the cell of the receptacle which bears it, 

 rarely producing a second perithecium; the secondary appendage 

 similar to the primary, two-celled, slightly shorter and more slender. 

 Perithecium usually single, the stalk often rather abruptly broader, 

 distally, below the ascigerous portion; which is bent abruptly side- 

 wise at an angle of about 45°; the inner margin strongly con\ex, the 

 outer concave; the tip distinguished by a very slight elevation ex- 

 ternally; tapering to the bluntly pointed apex. Perithecium 65-80 X 

 12-15 /x. Receptacle, exclusive of foot, 16 X 16-20 X 20 ix. Pri- 

 mary appendage 21 X 6 m> secondary 19 X 5.5-6 m- Total length 

 to tip of perithecium 95-105 m- Foot large. 



On the prothorax and elytra of a small tenebrionid (?)j No. 2388, 

 Mindanao, P. I. (Weber). 



The male and female of this species are so firmly united that I have 

 not been able to isolate the former in good condition. The antheridial 

 neck seems well dcAeloped, but is turned abruptly at right angles so 

 that it is viewed end on. The receptacle of the female is relatively 

 very small, with the extension of the basal cell conspicuous and ex- 

 ternally upcurved. The goose-neck habit of the perithecium and its 

 stalk are characteristic. 



Dimorphomyces clavuliferus nov. sp. 



Male individual consisting of two cells, or with a small third cell not 

 distinguished from the base of the erect, two- to three-celled appendage; 

 the terminal cell of which is brown, the subterminal sometimes dis- 

 tinguished h\ dark septa above as well as below and becoming brown- 

 ish. Basal cell of the receptacle extending out below the base of the 

 single antheridium, and obliquely separated from the smaller sub- 

 basal cell. Antheridium sessile, its stalk-cell small and flat, the venter 

 bulging externally, the neck curved or bent sidewise. Antheridia 

 16 X 6 ju. Appendage 8-10 X 3.5 m- Receptacle 15 X 9 m- Total 

 length to tip of appendage 32 ju. 



Female individual subflabelliform, the basal cell forming a slender 

 short stalk and extending sidewise below the four to nine cells of the 



