1958] 



THE BOTANY OF THE GUAYAXA HIGHLAND PART III 



109 



near Camp Yutaje, elev. 1300 m, Cerro Yutaje, Terr. Amazonas, Venezuela, Feb 

 6, 1953, Basseft Maguin & Celia K. Maguire 35073 (NY). 



Paratypes (all from Terr. Amazonas, VENEZUELA): Cerro Yutaje, Maguire 4' Maguire 

 35091, 35232; Cerro Coro-Coro, Maguire 4' Maguire 35489; Cerro Guanay, Maguire, Phelps, 

 Hitchcock, 4- Budousli 31730. 



Yar. hitchcockii has nearly elliptic leaf-blades mostly 12-25 X 9-13 cm with 

 rather persistent reddish puberulence ; the floriferous parts of the panicles are 

 10-21 X 10-15 cm. It is represented, apart from the type collection, by Maguire 

 <& Maguire 35338 and 35360 (both from Yutaje). Yar. parvifolia has ovate- 

 elliptic leaf blades 7-10 (-11) X 3-6 (-9) cm with acute to acutely rounded 

 apices; the pubescence of the lower leaf-surface is chiefly confined to the nerves; 

 and the flowering: panicles are 7-13 X 5-7 cm, expanding up to 20 X 9 cm in 

 fruit. The flowers of both varieties are either 4- or 5-merous; the ovary is pre- 

 dominantly 3-celled, rather than 4-celled as originally described. 



Graffenrieda rufa Wurdack, sp. nov. 



G. hitchcockii Gl. remote affinis sed foliis minoribus acuminatis. 



Ramulorum novellorum petiolorum foliorum novellorum alabastrorumque pu- 

 bescentia rufescentia densa granulosa. Petioli 8-15 mm; lamina integra 3.5-6.5 

 X 2-4 cm, ovata apice breviter gradatimque acuminata basi paulo cordata 

 5-nervia, nervis seeundariis supra inconspicue impressis subtus paulo elevatis, 

 supra et subtus primum dense granuloso-puberula, supra demum glabrata et 

 nitidula, subtus demum persistenter dense subtiliterque einereo-furfuracea. In- 

 florescentia terminalis pluriflora ; alabastra elliptica apice hebetiacuta 5-mera. 

 Staminum connectivum postice cum appendice acuta antice exappendiculatum. 

 Ovarium 3-loculare, dense granulosum apice in collum breve protractum. Fructus 

 1-2 mm pedicellatus ; fructuum sepala (vel dentes exteriores \) ca. 2 mm longa, 

 acuta; hyparithium fructiferum 4—4.5 X 3.5 mm: semina pyramidata laevia 

 0.7-0.8 X 0,3 mm. 



Type: shrub to 4 m, in bud, rare in cumbre between between Summit Cam]) 

 and southwest escarpment, elev. 1850 m, Cerro Huachamaeari. Terr. Amazonas, 

 Yenezuela, Dec 17, 1950, Bassett Maguin, B. 8. Cowan. & ./. ./. Wurdack 30282 

 (XY). 



Paratypes (all Ten-. Amazonas, YENEZUELA) : shrub or small tree to 5 m, inflores- 

 cence tawny, frequent in cumbre of Cerro Huachamaeari, elev. 1700 m, Dec 4, 1950, Maguire. 

 Cowan, 4' TTurdack 29817 ; shrub 5-8 ft tall, leaves dark green above, rufous brown below and 

 on petioles and young stems, moist exposed cliff face at 1600 m elev., southeastern-facing 

 sandstone bluffs near Cano Negro (tributary of Cano Iguapo), Cerro Duida, Aug 26, 1944, 

 J. A. Steyermarlc 58044. 



Graffenrieda fruticosa Wurdack, sp. nov. 



G. rufae Wurdack remote affinis, sed foliis minoribus triplinerviis non 

 acuminatis venis seeundariis subtus vix evolutis, inflorescentia vix evoluta. 



Hamuli novelli cum petiolis foliis subtus hypanthio calyceque densissinle 

 pallideque rufo-fulvi. Petioli 4—9 mm; lamina Integra 10-25 X 6-10 mm (in 

 ramis sterilibus ad 40 X 20 mm) elliptica vel paulo ovato-elliptica apice 

 hebetiacuta basi late acuta breviter (0.5-1 mm) triplinervia nervis seeundariis 

 inconspicuis supra august e inseulptis, supra primum furfuracea demum glabrata. 

 subus primum pallide rufo-fulva demum cinerea. Flores in ramulis foliosis 

 plerumque terni sessiles vel vix (ad 1 mm) pedicellati 5-6- (raro 4-) meri. 

 Hypanthiiim (ad torum) 3.7-4.7 X 3-4 mm.; calyx 1.4—2.8 mm coalitus ad 



