1958] 



THE BOTANY OF THE GUAYAXA HIGHLAND PART III 



93 



applanato erasso villoso-piloso, lamina eoriacea oblonga, 5-8 X 3-4 cm, apice 

 obtusa vel retusa, margine revoluta, basi obtusa vel subcordata. Flores 4 (5)- 

 meri in spicas axillares subeapitatas vel elongatas 1.5 cm longas pedunculatas. 

 pednnculo villoso 2.5-3.0 cm longo, dispositi. Reeeptaculum inferius (ovarium) 

 dense cinereo-pilosum 4 (5)-angulatum. Fructns ca. 10 mm longus, oblongus 

 sparse pilosulus 4 (5)-alatus, alis tenuibus ca. 2.5 mm latis. 



Type : slender virgate flexuous tree 6-10 m high, leaves thickly coriaceous 

 and brittle, ridge near southeast escarpment at 1700 m altitude. Cerro Guai- 

 quinima, Edo. Bolivar. Venezuela. Jan 7, 1952, Maguire 33000 (holotype NY, 

 isotypes BM, VEX). Paratype : spindly virgate tree 5-12 m high, 5-8 cm diam.. 

 leaves coriaceous, strongly inrolled, frequent in open scrub savanna and ridges. 

 Xorth Valley at 1600-1700 m altitude. Jan 4. 1952. Maguire 32952 (BM, XY). 



2. Terminalia opacifolia Maguire & Exell. sp. nov. Figure 10. 



T. virgatae similis sed ramulis foliisque fere glabris, spicis globoso-capitatis. 

 1.0-1.5 cm in diam., pedunculis 1.0-2.5 mm longis, glabris. Flores 4-meri. Reeep- 

 taculum inferius (ovarium) glabrum. Fructus ad hoc ignotus. Reeeptaculum 

 superius campanulatum extus glabrum. intus dense hirsuto-pilosum. 



Type : spindly tree 5-15 m high, 5-8 cm diam., frequent, dense scrubbush 

 (1-2 m high) savanna and ridges, at 1650 m altitude, Xorth Valley, Cerro Guai- 

 quinima, Edo. Bolivar, Venezuela, Maguire 32951 (holotype XY, isotype BM). 



Known only by the type collection from the type locality, where, with those 

 of T. virgaia, the tall flexuous virgate stems emerge conspicuously above the 

 waist- or head-high level of the open scrub vegetation. 



3. Terminalia guaiquinimae Maguire & Exell. sp. nov. Figure 10. 



T. virgatae et T. opacifoliae similis; ramulis glabris vel glabrescentibus ; 

 laminis subcoriaceis, oblanceolatis vel oblongo-oblanceolatis ; venis primariis pro- 

 minentibus vel prominulis, reticulatis, glabris vel in vernatione puberulis, nee 

 revolutis nee recurvatis ; pedunculis sparse subpilosis; reeeptaeulo inferiori 

 villoso-piloso, lobis calycis extus tenuiter pilosis intus dense villoso-pilosis. Fruc- 

 tus ad hue ignotus. 



Type : virgate slender tree 5-12 m high, frequent, ridges and rocky places 

 below Southeast Escarpment at 1600-1700 m altitude, Cerro Guaiquinima. Edo. 

 Bolivar, Venezuela, Jan 7. 1952. Maguire 33008 (holotype XY, isotype BM). 



Paratopes: tree 3-20 m high, leaves glabrous, frequent in open savannas or border of 

 woodland, Xorth Valley at 1600-1700 m altitude, Cerro Guaiquinima, Jan 10-12, 1952, Maguire 

 33056 (BM, NY) ; branched tree (sterile) 10 m high, along open streamcourse, Xorth Valley 

 at 1600-1700 m altitude, Cerro Guaiquinima, Jan 10-12, 1952, Maguire 33094 (BM, NY). 



4. Terminalia quintalata Maguire. Bull. Torrey Club 75: 649. 1948. 



BRITISH GUIANA : Potaro River, Kaieteur Plateau, Maguire $ Fanshawe 23459 (BM, 

 XY) ; Potaro River below Amatuk Portage, Maguire 4' Fanshawe 23551 (holotype XY, isotype 

 BM) ; upper Mazaruni River, Kataima, Maguire 4' Fanshawe 32640 (BM, XY). Pakaraima 

 Mts., Mt. Ayanganna, Maguire, Bagshaw 4' Maguire 40656 (BM, XY). VENEZUELA: 

 X'orthwest cumbre, Churi-tepm, Chimanta-tepui, at 1200 m alt., Wurdack 34328 (XY). 



5. Terminalia yapacana Maguire. Mem. N. Y. Bot. Gard. 8: 132. 1953. 



VEXEZUELA : Territorio Amazonas. Alto Rio Orinoco, Yapacana Savanna, at 125 m 

 alt., Maguire, Cowan 4' Wurdack- 30590 (holotype XY, isotype BM) ; same locality, Maguire 4' 

 Wurdack 34552 (XY) ; 34561 (XY, BM) ; 36582 (XY) ; Rio Guainia, Maguire # Wurdack 

 35716 (XY, BM); 35686 (XY). 



