122 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 8, No. 2 



This species is not at all closely related to any other but in its deeply dis- 

 sected calyx it most closely resembles G. bracteata of Brazil. The dendroid- 

 stellate pubescence alone is adequate for separating G. stelligera from all other 

 previously-described species in the genus and the corolla too is quite unlike that 

 found in any other species. In all species examined the corolla tube is very nar- 

 rowly cylindrical and elongate whereas in the new species it is proportionately 

 much wider and expands slightly toward the apex; in all other respects, however, 

 it is properly included in the genus Galipea. 



Ravenia paruana Cowan, sp. nov. 



Arbusta procumbentia, 0.1-1.5 m. alta, ubique hispida, ramulis subquadrangu- 

 laribus; folia simplicia, coriacea, 1.3-2.4x0.8-1.8 cm., ovata, suborbicularia 

 vel ovalia, valde convexa, margine revoluto, integro, costa supra valde impressa 

 et venulis obscuris, costa venulisque infra salientibus, ad apicem obtuse acuta, 

 ad basim obtusa, petiolis 2-2.5 mm. longis; flores singulariter ad apices ramu- 

 lorum producti, pedicello 1 = 5-3 mm. longo, sparse hispido, calyx irregularis, 

 quinquelobatus (vel raro sexlobatus), lobis inaequalibus, ciliatis, hispidis, valde 

 venosis, 2 exterioribus inaequalibus maioribus, lobo maximo oblanceolato, acuto, 

 10 x 4 mm., lobo secundo maximo oblongo-elliptico, 6.8 x 2 mm., 3 lobis reliquis 

 5.5-6.5 x 1.2-1.4 mm., lineari-ellipticis, corolla aurantio-roseo-rubra, subap- 

 presso- vel appresso-hispida, arcuata, extra leviter costata, lobis subinaequali- 

 bus, obtusis, plus minusve ovatis, 6.5-7 x 4.2-4.5 mm., tubo ca. 17 mm. longo, in 

 fundibuliformi, stamina 5, solum 2 fertilia, in tubum corollae tubo adnatum cohae- 

 rentia, staminum fertilium antherae oblongae, 2.5 x 1 mm., lateraliter cohaerentes, 

 ad basim appendicibus orbicularibus, 0.5 mm. diametro ornatae, filamentis ligula- 

 tis, 13 x 1.5 mm., tubi parte centrali pilosa, staminodia ligulata, 17 x 0.8 mm., 

 solum parte apicali libera et 4 mm. longa, subulata; discus 0.6 x 1.1 mm., carno- 

 sus, ovarium ex toto includens; stigma 5-digitatum, digitia incomposite lobatis, 

 0.7-1 mm. longis, stylus glaber, 11 mm. longus, filiformis, ovarium 0.6 x 0.9 mm., 

 glabrum, sparse verruculosum, in quinque carpellis liberis consistentibus, carpel- 

 lis ovula dua gignentibus; mericarpia non vidi. 



TYPE: frequent, shrub 0.1-1.5 m., flowers orange-red, semi-open, rolling 

 sabanita, about 2000 m., south of upper camp along west rim of escarpment, 

 cumbre of Cerro Paru, Territorio Amazonas, February 7, 1951, Richard S. Cowan 

 & John J. W'urdack 31285; New York 3otanical Garden. Paratypes: frequent, 

 sprawling shrubs 0.1-0.5 m., flowers orange-red, leaves coriaceous, margins in- 

 volute, just south of valley head of upper camp creek, cumbre of Cerro Paru, 2000 

 m., February 2, 1951, Cowan & Wurdack 31167; locally frequent, usually sprawl- 

 ing shrubs 0.1-1.25 m., flowers orange-red, margins of sabanitas, cumbre Cerro 

 Paru, 2000 m., February 4, 1951, Cowan & Vurdack 31225. 



This species is unquestionably related to the other appendaged-anther spe- 

 cies of the Guayana Highland, namely, R. linearis Gleason, R„ tatei Gleason and 

 R. ruellioides Oliver. It differs from all these in leaf shape, from the two latter 

 species in its glabrous ovary, and from the two former species in its staminodes 

 of equal length. 



This genus is characterized by calyx lobes in two series of which the two 

 outer ones are somewhat larger and by the production of one-seeded mericarps 

 which are free from each other even in the flower. As the genus was originally 

 described, the anthers were unappendaged but in a number of taxa described 

 since the anthers possess basal appendages. As this is the only significant mor- 

 phological difference between these species and the earlier-described ones, 

 it is felt, at the present, that a new genus to contain these later-recognized spe- 



