[Vor. 7 
200 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 
REE Stereum of Thelephora); Fries, Epicr. 551. 1838; Hym. 
Eur. 642. 1874; Sacc. Syll. Fung. 6: 566. 1888; Bresadola, 
I. R. Accad. Agiati Atti IIT. 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!: 38. 1881.— T'richocarpus ambiguus Karsten, 
Finska Vet.-Soc. Bidrag Natur och Folk 48: 407. 1889.— 
Hymenochaete ambigua Karsten in Saec. Syll. Fung. 9: 230. 
1891.— Peniophora Atkinsonú Ellis € Everhart, Phila. Acad. 
Nat. Sci. Proc.1894: 324. 1894; Saec. Syll. Fung. 11:129. 1895. 
Fructification coriaceous, nearly always resupinate, effused, 
occasionally reflexed, with upper surface tomentose, more or 
less concentrically sulcate when 
» Q well developed, hair-brown to 
Sg clove-brown, the margin entire; 
q 9 hymenium rather uneven, not 
polished, avellaneous to wood- 
brown; in structure 300-600 u 
thick, composed of somewhat 
longitudinally and not densely 
| interwoven hyphae 3-43 , in 
7 diameter, some of which are hya- 
l line, thin-walled, and with deeply 
Fig. 34. S. Chailletii. Section e 
of hymenium X 665, showing para- staining protoplasm, and y 
physes; spores, s. thiek-walled, stiff, giving their 
color to the fructification, and 
curving into the hymenium where they terminate in cystidia; 
eystidia slightly colored, roughened above, 50-120 4-44 yu, pro- 
truding up to 20 y, slender-pointed; spores white in spore col- 
lection, ellipsoidal, 5-6 3-31 u. 
