1960] 



BOTANY OF THE GUAYAXA HIGHLAND PART IV 



29 



Herniate. Disk undulate marginally, ea. 0.8 mm deep ; style glabrous, ea. 20 mm 

 long, ovary densely hispidulous. 



Key to the Varieties of Raveniopsis si ell ig era 



1. Mature calyx 3 mm long or shorter, the sepals plane, the larger ones not more than 



2 mm wide, the smaller about 1.5 mm wide. Lateral leaflets acute. 2a. var. stelligera. 



1. Mature calyx 4-5 mm long, some or all of the sepals reflexed at about the costa, the 

 larger sepals broadly ovate, 4 mm wide, the smaller ones 2-2.5 mm wide. Lateral 

 leaflets mostly rounded-obtuse, sometimes apiculate. 2b. var. plicata. 



2a. Raveniopsis stelligera var. stelligera. 



Galipea stelligera Cowan, Mem. X. Y. Bot. Gard. 8:121 Apr 1953. 



Endemic to the summit of Cerro Duida at about 1650 m elevation, in scrub 

 forest on the banks of streams (type collection, Maguire, Cowan d- Wurdack 

 29653- A). 



2b. Raveniopsis stelligera var. plicata Cowan, var. nov. 



A var. stelligera foliolis lateralibus rotundatis vel obtusis et apiculatis, 3 cm 

 longis vel brevioribus, ealyee 5 mm longo, lobis reflexis in costa, lato-ovatis vel 

 plus minusve oblongis, acutis, lobis 2 maioribus 4 mm latis, late ovatis. 3 min- 

 oribus 2-2.5 mm latis, oblongis usque oblongo-lanceolatis, petalo adaxiali late 

 ovato, ca. 3.5 mm longo et lato differt. 



VENEZUELA: Amazonas: Cerro Coro-Coro, Serrania Yutaje, Eio Manapiare, occasional 

 in savannas and among rocks; alt. 1500 m; shrub 2-5 m high (sun form) ; fls coral red; 2 Mar 

 1953, Bassett Maguire <?• Celia K. Maguire 35440 (Holotype, US No. 2253691). Same data 

 and collectors 35:262, 35277, 35302 (paratypes). 



Endemic to the summit of Serrania Yutaje between 1300 and 2000 m elevation 

 in woodland thickets and in open rocky savannas. 



As is indicated in the varietal key, these varieties are separated principally 

 by the differences in the proportions of the calyx in addition to a geographic 

 disjunction; the plicate condition of the sepals is a striking- difference separating 

 var. plicata but it is not completely constant and hardly specific in importance. 

 The difference in the shape of the adaxial petal in the two varieties is also worth 

 noting, but it is mostly a matter of width. 



When I originally described this species I included it in the genus Galipea, 

 but it cannot belong there, as I presently interpret that genus, because of the 

 form of the corolla and calyx. The sepals in individual flowers of material of 

 the typical varietj" are not so dissimilar as they are in var. plicata and, for that 

 matter, in most of the species of Raveniopsis and at the time of the original 

 description of this species I ignored the small differences. 



This species is one of three with the stellate type of pubescence ; in this one 

 and in R. tomentosa the hairs are dendroid-stellate. The branches of the hairs 

 are more or less equally distributed along a main axis in that species; in R. 

 stelligera the branches are rather closely aggregated on the lower part of the 

 main axis and the greater part of the axis is naked of branches and drawn out 



(Maguire, Wurdaclc 4' Maguire 42217.) a, habit, X 0-5; b, calyx and gynoecium, X 2 ; c, 

 corolla and androecium, X 2. Fig. 20. E. stelligera. a-c, var. stelligera; a, calyx, X 3 ; b, 

 corolla, X 1; c, one hair, X 20; d-g, var. plicata; d, habit, X 0.5; e, mature calyx, X 3 ; f , 

 gynoecium, X 3 ; g, corolla, X 1. Eig. 21. B. ruellioides. a-b, var. ruellioides (Maguire et al. 

 42447); a, habit, X 0.5; b, calyx, X 2; c-d, var. angusta (Maguire' et al. 42189); c, habit, 

 X 0.5; d, calyx, X 2. 



