1953] 



BOTANY OF THE GUAYANA HIGHLAND 



127 



jecto; ovario 2-loculari 3-stylari glabro, stylis subulatis erectis ca. 2 mm. 

 longis; drupis exigue carnosis ovatis ca. 2.5 mm. longis, 1-pyrenis, 2-locularibus, 

 2 seminibus. 



TYPE: sparsely or thickly branched shrub or small tree 1-4 m. high, flowers 

 yellow, enlarging calyx turning red, dominant shrub in open areas, frequent at 

 2000 m. alt., Cerro Paru, Rio Paru, Rio Ventuari, Terr. Amazonas, Venezuela, 

 Feb. 4,' 1951, R. S. Cowan & J. J. Wurdack 31233; New York Botanical Garden. 

 Paratypes: shrub to 7 feet high, flowers yellow, enlarged sepals red, one of the 

 most abundant shrubs of the cumbre at 1700 m. alt., Cerro Paru, Feb. 1949, 

 Kathleen D. Phelps & C. B. Hitchcock 516; shrub to 4 m. high, one petal larger 

 crinkled, flowers yellow, calyx at first yellow at maturity becoming ampliate and 

 bright red, dominant sabanita plant, West Escarpment, ca. 2000 m. alt., Jan. 31, 

 1951, Cowan & Wurdack 31066; 31079; 31080; 31081; Cerro Paru, Feb. 2, 1951, 

 Cowan & Wurdack 31150; 31111. 



4. Sipapoa vestita (Benth.) Maguire, comb. nov. 



Coleostachys vestita Benth. Lond. Jour. Bot. 7: 124. 1848. 

 Diacidia vestita (Benth.) Benth. & Hook. Gen. PI. 1: 253. 1862. 



TYPE: "mountains of British Guiana, Schomburgk sine no." Kew. Not seen. 



Specimens collected by Tate (no. 563) on Cerro Duida were referred to Dia- 

 cidia vestita (Benth,) Benth. & Kook. by Gleason. 25 Mr. Sandwith very kindly 

 compared fragments of the Tate collection with the type of Coleostachys vestita 

 Benth. at Kew. In his opinion the two are definitely conspecific. More recently 

 an extensive series of this handsome little tree was obtained on Cerro Huachama- 

 cari, a sandstone mountain separated to the north from Cerro Duida by the valley 

 of the Cunucunuma River. 



Specimens examined: slender tree 20 feet high, flowers yellow, calyx persistent turn- 

 ing red, stream bank at Central Camp, alt. 4800 feet, summit Mount Duida, Amazonas, 

 Venezuela, Dec. 28, 1928-Jan. 1, 1929, Tate 563 (NY). Cerro Huachamacari, Terr. Ama- 

 zonas, Venezuela, Maguire, Cowan & Wurdack; shrub or small tree to 5 m. high, flowers 

 yellow, frequent along south escarpment, 1700 m. alt., 29806; shrubby tree to 6 m. high, 

 petals yellow, gJands on calyx yellow, common on south escarpment face, 1300-1700 m. 

 alt., 29858; shrub 5 m. high, flowers yellow, mature calyx red, near summit of South Es- 

 carpment, 1700 m. alt., 29869; shrub or small tree to 6 m. high, flowers yellow, common, 

 elfin forest about Summit Camp, 1500 m. alt., 30091; shrub to 2 m. high, flowers yellow, 

 occasional, summit of East Escarpment, 1900 m. alt., 30111; shrub 3 m. high, flowers 

 yellow, occasional along West Escarpment, 1800 m. alt., 30221; shrub or tree to 5 m. 

 high, flowers >ellow, common in low dense woodland along Cano de Dios, alt. 1500 m., 

 30252. 



5» Sipapoa stipularis Maguire & Phelps, sp. nov. 



Frutex 3 m, altus; ramulis teretibus ca. 4 mm. diam. valde glaucis, inter- 

 nodiis (5) 10-35 mm. longis, alabastris sericeo-hirsuto-pilosis; foliis oppositis, 

 laminis obovatis vel lanceolatis vel ellipticis vel obovatis, 5-8 (12) cm. longis 

 3.0-4.3 cm. latis, cum 5-8 jugis primariis nervis lateralibus, supra glabris nervis 

 prominulis, subtus dense sericeis granulo-glaucisque, nervis prominulis, apice 

 obtuso, basi obtusa, petiolorum partibus liberis 5-8 mm. longis, ad basim vaginae 

 6-8 mm. connatis, vaginis extus glabris glaucisque intus densissime sericeo- 

 pilosis, stipulis intrapetiolaribus 5-8 mm. connatis foliaceis oblongo-ellipticis 

 obtusis 3.0-3.5 (7.0) cm. longis 14-20 (28) mm. latis glabris rubro-tinctis, la- 

 teraliter connatis 3-6 mm., venis conspicuis; inflorescentia 10-18 cm. longa 

 racemosa glabra glauca, bractearum subtendentium foliarium laminis 1-4 cm. 

 longis, stipulis magnis, 1.0-5.0 cm. longis, bracteolis obovatis vel oblongis obtu- 



Bull. Torrey Club 58: 380. 1931. 



