Revisions of Some Plant Phyla 27 



Family 125. Tulasnellaceae. Saprophytes; basidia rounded, 

 without sterigmata. Tulasnella. (Syllabus 40.) 



Family 126. Hypochnaceae. Basidia developed upon the floc- 

 culent mycelium, forming vague superficial spore-fruits. Hy- 

 pochntis, Tomentella. (Pf. I, i**, 114.) 



Family 127. Exobasidiaceae. Parasites in the tissues of 

 higher plants, the basidia crowded into a loose hymenium ; spores 

 borne on sterigmata. Exobasidiiim. (Pf. I, i**, 103.) 



Order Tremellales. Jelly Fungi. Reduced and degraded 

 Basidiosporeae, related to the preceding families : basidia divided 

 by vertical partitions. 



Family 128. Sirobasidiaceae. Spore-fruits gelatinous, open, 

 the basidia in serial rows, spores sessile. Sirohasidium. (Pf. I, 

 I**, 89.) 



Family 129. Tremellaceae. Spore- fruits gelatinous, open, ex- 

 panded to foliose and cup-shaped; basidia collateral, elongated. 

 Exidia, Tremella. (Pf. I, i**, 90.) 



Family 130. Hyaloriaceae. Spore- fruits capitate, stalked, 

 closed, the basidia developed in a circular subterminal zone. Hy- 

 aloria. (Pf. I, i**, 95.) 



Order Auriculariales. Ear Fungi. Reduced and degraded 

 Basidiosporeae, related to the preceding families; basidia divided 

 by transverse partitions. 



Family 131. Auriculariaceae. Hymenium exposed; spore- 

 fruits from irregular foliose to loose and vague aggregations of 

 basidia; more or less gelatinous. Platvgloea, Auricularia. (Pf. 

 I, I**, 83.) 



Family 132. Pilacraceae. Spore-fruits capitate, stalked, closed, 

 filled with basidia. Pilacre, Pilacrclla. (Pf. I, i**, 86.) 



Class 17. TELIOSPOREAE. Brand Fungi. Parasitic fungi, 

 much reduced and degraded, with a mycelium which penetrates 

 the tissues of the host and produces erumpent spore-clusters 

 (sori) but no definite spore-fruits; conidia single-celled, usually 



63 



