LITEKATURE CITED 



461 



Spines fertile, texture soft to tough gelatinous. 



Soft gelatinous; subiculum delicate; probasidia without stalk becoming 



separated as a stalk cell. Protodontia 



Tough gelatinous; subiculum thick; probasidia with stalk becoming 

 separated as a stalk cell. Protohydnum 



Erumpent or pileate, or, if appearing effused, with determinate margins. 

 Tough or coriaceous to somewhat waxy when moist. 



Cupulate to broadly attached with a free margin; aspect of Stereum. 



Eichleriella 



Erect, branched or rarely simple; aspect of Clavaria or Thelephora. 



Tremellodendron 



Gelatinous; horny when dry. 

 Erect-cerebriform to lobate. 



Spores subglobose or ovate. Tremella 



Spores allantoid; gloeocystidia lacking. Exidia 



Spores allantoid; gloeocystidia present. Seismosarca 



Pileate and stipitate or substipitate. 



Stipitate or dimidiate; hymenium on teeth. Protohydnum 



(Tremellodon of authors) 

 Infundibuliform; hymenium inferior, smooth or somewhat wrinkled. 



Phlogiotis 

 (Gyrocephalus) 

 Key to the Genera of Family Tulasnellaceae 



(Based on Martin, 1944) 



"Epibasidia" at fu-st bluntly cyhndrical, at length fusiform, not separated by 

 septa from the "hypobasidium." Ceratobasidium 



"Epibasidia" at first globose, becoming ovate, pyriform or ventricose-cylindrical, 

 separated by septa from the "hypobasidium." 

 Arid-pruinose to waxy; basidia short-stalked, not embedded in mucus; gloeo- 

 cystidia never present. Tulasnella 

 More or less gelatinous; basidia long-stalked, embedded in mucus; gloeo- 

 cystidia present or absent. Gloeotulasnella 



Literature Cited 



Atkinson, George F.: Studies of American Fungi. Mushrooms edible, poisonous, 



etc., vi + 275 pp. 6 colored plates. 223 figs. Ithaca, N. Y., Andrus and 



Church, 1900. 

 Baker, Gladys E.: A study of the genus Helicogloea, Ann. Missouri Botan. 



Garden, 23(1):69-128. Pis. 7-14. 1936. 

 Barnett, Horace L.: Studies in the sexuality of the Heterobasidiae, Mycologia, 



29(5) :626-649. Fi^s. 1-3. 1937. 

 BoEDiJN, K. B., ET A. Steinmann: Les especes des genres Helicobasidium et 



Septobasidium des Indes N^erlandaises, Bull. Jardin Botan. Buitenzorg, 



s6r. Ill, 11(2):165-219. Pis. 14-18. Figs. 1-31. 1931. 

 Brefeld, Oscar: Basidiomyceten II. Protobasidiomyceten, in Untersuchungen 



aus dem Gesammtgebiete der Mykologie, Heft. 7, pp.i-ix, 1-17S. Pis. 1-11. 



Leipzig, Arthur Felix, 1888. 

 : Basidiomyceten III. Autobasidiomyceten und die Begrlindung des 



naturlichen Systems der Pilze, ibid., Heft. 8, pp. i-iv, 1-305. Pis. 1-12. 



Leipzig, Arthur FeUx, 1889. 



