200 



[Vol. 7 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 



the hymenium is a single layer of basidia, cystidia, and para- 

 physes. In the collector's note, the color is given as "violet 

 purple edged with white," but colors of dried specimens are as 

 given above. 



Specimens examined: 

 Jamaica: Hope Gardens, F. S. Earle, 151, type, comm. by N. Y. 

 Bot. Gard. Herb. 



62. S. Chailletii Persoon, Myc. Eur. 1: 125. 1822 (in 

 ******Stereum of Thelephora); Fries, Epicr. 551. 1838; Hym. 

 Eur. 642. 1874; Sacc. Syll. Fung. 6: 566. 1888; Bresadola, 

 I. R. Accad. Agiati Atti III. 3: 106. 1897. Plate 6, fig. 62. 

 Thelephora Chailletii Pers. in Fries, Elenchus Fung. 1: 188. 

 1828. Xerocarpus ambiguus Karsten, Soc. pro Fauna et Flora 

 Fennica Actis 2 1 : 38. 1881. Trichocarpus ambiguus Karsten, 

 Finska Vet. -Soc. Bidrag Natur och Folk 48: 407. 1889. 

 Hymenochaete ambigua Karsten in Sacc. Syll. Fung. 9: 230. 

 1891. Peniophora Atkinsonii Ellis & Everhart, Phila. Acad. 

 Nat. Sci.Proc.1894: 324. 1894; Sacc. Syll. Fung. 11: 129. 1895. 

 Fructification coriaceous, nearly always resupinate, effused, 

 occasionally reflexed, with upper surface tomentose, more or 



less concentrically sulcate when 

 well developed, hair-brown to 

 clove-brown, the margin entire; 

 hymenium rather uneven, not 

 polished, avellaneous to wood- 

 brown; in structure 300-600 ^ 

 thick, composed of somewhat 

 longitudinally and not densely 

 interwoven hyphae 3-4J /jl in 

 diameter, some of which are hya- 

 line, thin-walled, and with deeply 

 staining protoplasm, and many 

 thick-walled, stiff, giving their 

 color to the fructification, and 

 curving into the hymenium where they terminate in cystidia; 

 cystidia slightly colored, roughened above, 50-120X4-4f /z, pro- 

 truding up to 20 At, slender-pointed; spores white in spore col- 

 lection, ellipsoidal, 5-6 X 3-3 J /*. 



Fig. 34. S. Chailletii. Section 

 of hymenium X 665, showing para- 

 physes; spores, s. 



