176 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [VOL. 10 



cumbre, Maguire, Wurdack, & Bunting 37038 , 37118, 37305, 37330, Maguire, 

 Wurdack, & Maguire 42270. 



In the typical subspecies, the upper leaf surface is plane with slender-based 

 hairs, while the lower surface is plane or with minute protuberances at the upper 

 surface hair insertion points ; in subsp. neblinensis, each upper surface hair 

 insertion point is marked on the lower leaf surface by a prominent indentation. 

 The mature flowers in the Neblina collections increase somewhat the bud dimen- 

 sions as described by Gleason ; petals are 21 X 9 mm. filaments 8.5 mm long, 

 anthers 6.2 mm long, and style 17 X 1 mm. There seems no reason for the separa- 

 tion of T. montana Gleason from T. obovata, the characters cited in the original 

 description either being minute quantitative ones or not holding for the type 

 specimens. The young stems and lower leaf surface veins of Tate 593 are sparsely 

 setose ; the hypanthial setae of Tate 1009 are in part gland-tipped and the sepals 

 are only about 2.5 mm long (rather than 4 mm cited in the original description). 

 Two sprigs of 37330 and two of 42055 show development of spherical formicaria 

 0.5-1 cm long on a few of the leaves ; this must be of infrequent occurrence, 

 judging by the many duplicates of most collection numbers without formicaria. 



Tococa erythrophylla (Ule) Wurdack, comb. nov. 



Miconia erythrophylla Ule, Notizbl. Bot. Gart. Berlin 6: 357. 1915. 



T. erythrophylla is closely related to T. nit ens (Benth.) Triana, differing in 

 the dull red-flushed leaf blades with plane secondary and tertiary lower leaf 

 surface veins, as well as the ventro-terminal anther pore. T. nitens has glossy 

 green leaf blades with prominently elevated-reticulate lower surface veinlets and 

 the anther pore slightly tipped dorsally. Pubescence quantity is quite variable 

 in both species. In Ule 8679 (ex photo) and two recent British Guiana collections 

 (Tillett, Tillett, d° Boyan 43984, 45053), the leaves are glabrous and eciliate, 

 although minutely crenulate-serrulate. Among the numerous recent Chimanta 

 Massif and Auyan-tepui specimens, the leaf blades are caducously ciliolate- 

 serrulate with surfaces varying from glabrous to sparsely lax-setulose. There 

 apparently is a general correlation with habitat, the slope forest and cumbre 

 scrub forest collections being the most pubescent ; the pubescence transition is 

 so gradual that no nomenclatoral recognition seems feasible. T. desiliens Gleason 

 differs from T. erythrophylla in the gland-tipped stem, inflorescence, and hy- 

 panthium hairs and relatively broader leaf blades. T. cinnamomea Triana has 

 the leaf blade bases rounded and nearly peltate on the petiole apex, as well as 

 anther pores tilted dorsally. 



Tococa erioneura (Cogn.) Wurdack, comb. nov. 



Miconia erioneura Cogn. Mem. Torrey Club 6: 38. 1896. 



Certainly the near relatives of this Bolivian species are in Tococa Sect. 

 Anaphysca, the closest being the next-described species. Cogniaux suggested 

 Miconia schlimii Triana as a relative ; however, the complete lack of simple hairs, 

 non-pruinose petals, and almost completely inferior 5-celled ovary negate close 

 affinity with T. erioneura. 



Tococa tepuiensis "Wurdack, sp. nov. 



Sect. Anaphysca. T. erioneurae (Cogn.) Wurdack affinis sed foliorum laminis 

 latioribus subtus pilis glanduliferis intermixes. 



