1933] 



BOTANY OF THE GUAYANA HIGHLAND 



159 



densely vegetated summit. The thick conspicuous pubescence of the shoots and 

 immature leaves is unique in the section Paniculata. Otherwise, this closely 

 confined endemic fits well into the section. 



6. Gongylolepis erioclada Blake, Bull. Torrey Club 58: 495. 1931. 



Known only from Cerro Duida, Terr. Amazonas, Venezuela. 



7. Gongylolepis paruana Maguire, sp. nov. 



Frutex vel arbor parva ramosa 2-5 m. alta; ramis 3-4 mm. diam., dense 

 appresso-sericeo-tomentoso-pilosis denique glabrescentibus, internodiis 4-6 mm. 

 longis; foliis alternis coriaceis oblanceolatis vel oblongo-ellipticis (3) 4-6 cm. 

 longis 1-3 cm. latis, apice obtusiusculo vel obtuso, basi acuta vel aliquando ob- 

 tusa, nervis primariis ca. 6 jugis, supra inconspicue prominulis, suotus nervis 

 venulisque prominenter reticulatis, foliis juvenilibus conspicue appresso- 

 tomentoso-pilosis mox glabrescentibus, petiolis 6-8 mm. longis, dense similiter 

 pubescentibus; capitulo solitario, pedunculis 8-15 mm. longis, dense similiter 

 pubescentibus cum 1-3 bracteis 3-5 mm. longis vel subfoliaribus ad 10 mm. lon- 

 gis; capitulis anguste campanulatis 2.5-3.0 cm. longis 18-22 mm. latis, phyllari- 

 bus gradatis 5-6-seriatis purpurellis obtusis vel rotundatis ad margines scariosis, 

 exterioribus glabris late ovatis vel orbicularibus 4-6 mm. longis, interioribus 

 2.5-3.0 cm. longis anguste vel aliquantum late oblanceolatis cucullatis intus 

 puberulis; receptaculo ca. 5 mm. diam. convexo glabro; floribus 8-15, corollis 

 bilabiatis sparse puberulis, lobo posteriori 15-18 mm. longo minute tridentato 

 ca. 2.0-2.5 mm. lato, lobis anterioribus 0.8-1.0 mm. latis, tubo 11-13 mm. longo; 

 antheris connatis 14-15 mm. longis, appendicum apicibus ca. 1 mm. longis acutis, 

 apice incurvo, appendicibus caudatis 2.5-3.0 mm. longis acutis 1 mm. liberis; 

 filamentis ca. 8 mm. longis in orificio tubi affixis; pappo 12-14 mm. longo, pur- 

 purello, setis fragilibus minute barbellatis; stylo 3.0-3.5 cm. longo, ramulis ca. 

 2 mm. longis subtruncatis glabris obscure trilobatis; achaeniis 5-7 mm. longis 

 glabris linearibus pallidis, annulo inconspicuo. 



TYPE: much branched shrub 2 m. high, young leaves pubescent, corollas yel- 

 lowish with red-brown veins, occasional at sabanita edge, cumbre along West 

 Rim, 2000 m. alt., Cerro Paru, Amazonas, Venezuela, February 4, 1950, Richard 

 S. Cowan & John /. Wurdack 31239; New York Botanical Garden. Paratype: trees 

 3—5 m. high, bracts purple-edged, corolla yellowish with purple-brown veins, sta- 

 mens and style purple-brown, occasional, rocky sabanita, south-southeast escarp- 

 ment Cerro Paru, Cowan & Wurdack 31375. 



Gongylolepis paruana is known only from Cerro Paru. It is most clearly re- 

 lated to the meagerly collected G. erioclada Blake of Cerro Duida but differs 

 most obviously in the inconspicuously smaller sessile heads and the more prom- 

 inently veined upper leaf surfaces of the latter. 



8. Gongylolepis glaberrima Blake, Bull. Torrey Club 58: 494. 1931. 

 Known only from Cerro Duida, Terr. Amazonas, Venezuela. 



9. Gongylolepis benthamiana Rob. Schomburgk, Linnaea 20: 759. 1847. 



The type, Rob, Schomburgk 1383, was collected from the savannas near the 

 "Caramang" or Carimani River, headwater tributary of the Mazaruni Rivers, within 

 "35 miles" of Mt. Roraima (probably within the Venezuelan boundary). The spe- 

 cies is known generally from the Gran Sabana region from Auyan-tepui to Roraima. 



10. Gongylolepis huachamacari Maguire, sp. nov. 



Arbor parva vel frutex 1-5 m. altus, simplex vel pauciramosus; ramis 8-10 

 mm. diam., internodiis brevissimis juvenilibus dense fusco-villoso-pilosis; foliis 

 alternis congestis (5) 8-12 (15) cm. longis (1.2) 2-3 cm. latis oblanceolatis co- 



