[Vol. 1 

 200 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Key to the Species 



Erect six'ciej!, usually with central stem and pilous divided into very narrow, 

 branching, flattened or cylindric divisions; hynieniuni inferior or ani- 



phigenous 1 



Erect species, usually with central stem and more or less infundihuliform, 

 cup-shape<l or (labelliform pileus, which may be radially split into 



lobes and divisions 2 



Species of incrusting, effuso-reflexed, dimidiate, or applanate habit 5 



1. 2-<j cm. high, much branched, glabrous, with fetid odor when growing, 



perhaps rarely odorless 1. T. palmala 



1. 3-0 cm. high, much branched, minutely pubescent; stem villose, without fetid 



odor. Compare T. mnUipartiia 2. T. anthocephala 



1. Less than 2 J cm. high, branching at or below surface of ground, dusky drab 



except at base 3. T. cocspitulans 



1. Less than 2 cm. high, very slender and fragile, cinereous. Known only from 



State of Washington 4- T. scissilis 



1. Large species, highly branched, with body of spore of regular obovoid form. 



Known only from Central America 5. T. anguslata 



2. Hymenium dark colored, i. e., brown to fuscous 3 



2. Hymenium hght colored, i. e., pallid to gray 4 



3. Small species, lJ-3 cm. high, upper surface usually drying palUd, usually 



deeph- cleft or many-parted into narrow divisions; stem \-illose.^. T . multipartita 

 3. Small species, 6 mm.-2j cm. higli, infundibuliform or deeplj' divided into 

 two or three triangular divisions, or flabelliform ; stem villose. Closely related 



to T. multipartita 7. T. regularis 



3. Fructification 1 cm. high, white; stem white, glabrous. Known only from 



Guadaloupe S. T. pusiola 



3. 1^-5 cm. high, larger species than the three preceding but with thinner pileus, 

 fuscous purple (Rood's brown) throughout, often with the thin lobes imbri- 

 cate like the petals of a carnation; stem villose 9. T. caryophyUea 



3. 2-4 cm. high, somewhat tubular, hymenium vinaceous brown to drab; stem 

 sulcate and pitted but not villose; spores 10-14 m in diameter. Known only 



from Jamaica 10. T. magnispora 



3. Large species, 2^-7 cm. in diameter, with upper surface pallid except at the 



center and with the hymenium dark 13. T. vialis 



4. Small species, less than 2 cm. in height and in diameter, somewhat pallid 



to brick-red 7. T. regularis 



4. Pileus with outer lobes forming a cup and with inner lobes distinct, 

 crowded, erect, cinereo-fuscous. Known from Costa Rica and Brazil. 



11. T. corbiformis 

 4. Large species, 5-7 cm. broad, deeply infundibuliform, habit and color of 



Craterellus cornucopioides. Costa Rica and Jamaica. .12. T. cornucopioides 



5. Growing in applanate clusters, efTuso-reflexed, or dimidiate 6 



5. Always incrusting {T. albido-brunnea is sometimes incrusting) 8 



6. Hymenium pale and colored like the pileus, cinnamon-buff; pileus 



spongj-, more than 2 nrni. thick; spores 8-10 x 6-8 /x . . .14.T. albido-brunnea 

 6. HjTnenium and pileus j-ellowish, less than 2 mm. thick; spores 5-6 x 4 m 



16. T. lutosa 



