266 THAXTER. 



Dimeromyces Copropori nov. sp. 



Male iudh'idual becoming tinged with brown, short and stout. 

 Receptacle consisting of three cells; the distal more deeply tinged 

 with brown as is the relati^'ely large basal cell of the appendage, which 

 bears a small button-like terminal cell. Antheridia usually two, 

 faintly brownish, short and stout, with short hardly distinguished 

 necks, straight, the stalk short but distinct. Receptacle, without foot, 

 20 X 12 /x. Appendage 13 /jl. Antheridia 30 X 9 m- Total length 

 to tips of antheridia 58-62 yu. 



Female individual rather uniformly tinged with pale dirty \'ellowish 

 brown. Receptacle erect, distally somewhat curved backward, con- 

 sisting of about sixteen to twenty cells, those above the basal flattened, 

 horizontal, except for the distal curvature; those in the mid-region 

 broader, producing either perithecia, or short two-celled abortive 

 appendages which may be mere unicellular protuberances and alter- 

 nate more or less with the perithecia: the primary appendage two- 

 celled, similar to the secondary, and forming a blunt termination to 

 the receptacle from which it is hardly differentiated. Perithecia paler 

 below and at the apex, nearly sessile, subcylindrical, the tip rather 

 clearly distinguished, darker, tapering to the slightly asymmetrical, 

 broad, blunt termination. Perithecia 100-125X20-25^1. Recep- 

 tacle, including foot and primary appendage 125-180 X 25-28 fx. 

 Secondary appendages 18 X 10 /j.. Total length to tips of perithecia 

 225-260 M- 



On legs of Coproporus sp. No. 2620, Kamerun, West Africa. 



This very distinct species recalls to some extent the habit of D. 

 pinnatus although the organs arise from one side only and the form of 

 the perithecia and appendages is quite different. The host is said by 

 Mr. Arrow to be an undescribed species. 



Dimeromyces Roreri nov. sp. 



Male individual hyaline, very faintly tinged with yellowish brown. 

 Receptacle consisting of two cells, or rarely three; erect, the append- 

 age three-celled, the middle cell roundish and distinguished by slight 

 constrictions and dark septa. Antheridia one or two, slightly asym- 

 metrical, the stalk free and well developed, the neck moderate and 

 well distinguished. Receptacle, without foot, 12-13 X 8 /u, the foot 



