MYCKTOZOA OF ANTIGUA AND DOMINICA. 119 



Eex's gathering, from which the Dominica specimen differs in the 

 size of the spores, that measure 14 fi as opposed to 9 /x. 



25. DiACH^A ELEGANS Fr. On dead leaves, Antigua. The two 

 gatherings of this species have the white stalks longer than the 

 cylindrical sporangia, and almost smooth spores ; a typical form. 



26. DiDYMiuM EFFUSUM Link. On dead leaves, &c., Antigua. 

 There are three large gatherings of this species, which Mr. Gran 

 says is most abundant in the island. The sporangia are subglobose 

 and stalked, and the capillitium varies from almost black to colour- 

 less, as it does in European specimens. 



27. DiDYMiuM Clavus Eost. On dead leaves, Antigua. A single 

 typical specimem with short dark stalks. 



28. DiDYMiuM NiGRiPEs Fr. y xanthopus. On dead leaves, 

 Antigua. A single gathering. The stalks are dark brown, shading 

 upwards into dull orange ; the columella and capillitium colourless ; 

 the spores are pale and measure 7 ft, which is small for the species. 

 In comparing a series of English gatherings of var. xanthopus a 

 great difference is observed in the depth of the colour of the spores ; 

 specimens with dark and with pale spores are in about equal pro- 

 portion. 



29. Stemonitis fusca Eoth. On dead wood, &c., Antigua. 

 There are several gatherings of this species. The spores are 

 closely reticulated in all, and vary in size from 7 to 10 /x diam. 



30. Stemonitis splendens Eost. On dead wood, Antigua. In 

 one gathering the superficial net of the capillitium has the small 

 mesh of Eostafinski's type from Texas, in another the mesh is 

 broader ; the spores measure 6-7 />t diam. 



31. Stemonitis herbatica Peck. There are two gatherings from 

 Antigua, one on palm-leaf and the other on " decayed stumps of 

 sandbox trees," and one from Dominica. The superficial net of the 

 capillitium is similar to that of Peck's type ; the spores are greyish, 

 6-7 />o diam. 



32. Stemonitis Smithh Macbr. On wood, Antigua. The six 

 gatherings of this species differ from the usual type in the delicate 

 surface net of the capillitium having a wider mesh ; the spores 

 measure 5-5-5 fji. 



33. Comatricha Persoonii Eost. On wood, Antigua. There are 

 three gatherings. They are all of a small form with rather clavate 

 sporangia of a pinkish colour, and take an intermediate position 

 between the type and var. /3 tenerrima; the spores are nearly smooth, 

 6-7 jtt diam. 



34. Comatricha typhoides Eost. On dead wood, Antigua. A 

 typical form with dense intermediate capillitium ; the spores measure 

 5-6-5 /x, and have the widely scattered warts remarked on by Dr. 

 Eex as characteristic of the species. 



35. Comatricha longa Peck. On a slip of wood, Antigua. The 

 specimen is in perfect condition. Mr. Cran writes : "I found it on 

 a root hanging down like a goat's beard ; some of the sporangia 

 must have been almost or quite two inches in length." 



