1958] 



THE BOTANY OF THE GUAYAXA HIGHLAND PART III 



85 



26. Marlierea insignis McVaugh, Fieldiana Bot. 29: 176. 1956. 



For description see McVaugh, I.e. Known only from the type and parat-ype, 

 from eastern Colombia (Soratama, Rio xYr)aporis, Amazonas-Vaupes) . 



27. Marlierea intonsa McVaugh, sp. nov. 



Arbor 12 m alta, pubescens usque ad velutina, fructu velutino ; ramulis ex- 

 alatis; foliis rigide eoriaceis, 14-15 cm longis, 5-7 cm latis, saltern duplo longi- 

 oribus quam latioribus, subtus minute bullatis, acuminatis; nervo medio supra 

 impresso; Yenis apertis, impressis, utroque latere 15-20; nerYO marginali 1.5-2.5 

 mm a margine remoto ; petiolis 2 cm longis ; paniculis 9 cm longis ; paniculae 

 ramulis accensis nullis. 



Tree 12 m high, the inflorescence, branchlets, and lower leaf-surfaces ap- 

 pressed-pubescent to Yelutinous with pale brown straight hairs 0.5-1 mm long; 

 fruit heavily Yelutinous with similar, brownish-yellow hairs; leaYes rigidly cori- 

 aceous, elliptic or ovate, 5-7 cm wide, 14-15 em long, 2-2.7 times as long as wide; 

 abruptly short-acuminate, the base rounded, then cuneately decurrent on the 

 deeply channeled petiole 2.5-3.5 mm thick. 2 cm long; midvein impressed above, 

 eleYated its own diameter beneath; lateral veins 15-20 pairs, stronger than the 

 intermediates, narrowly impressed above, prominent beneath; marginal vein 

 about equaling the laterals and markedly arched between them (at least near 

 the tip of the blade), 1.5-2.5 mm from the margin; leaves glossy above, feature- 

 less or obscurely impressed-punctate ; lower surface very finely bullate, without 

 apparent glands; panicles axillary, myrcioid or marlieroid (then the axillary 

 axis 2.5 cm long, abortive above tin 1 first node from which the paired panicles 

 arise), 9 cm long, twice compound, 10-12-flowered, the flowers clustered near the 

 tips; peduncle 4-5 cm long, compressed. 2-2.5 mm wide at the summit; buds 

 and flowers not seen; staminal ring heavily velutinous with pale straight hairs 



0. 7-1 mm long; fruit globose or somewhat elongate, 2-2.3 cm in diameter, 

 "brownish yellow green" (Steyermark) ; calyx subpersistent, its lobes 5. sub- 

 orbicular or broadly rounded, 3 mm long, 3-3.5 mm wide, pale tomentose within 

 (greenish, according to Steyermark), the disk in fruit obscurely pentagonal, 

 5-6 mm wide, densely pale-tomentose, the center depressed about 1 mm; seed 



1. myrcioid. 



VENEZUELA: Bolivar; Chimanta Massif, west-facing' portion of Chimanta-tepui, eleva- 

 tion 1600-1700 m, June 5, 1953, J. A. Steyermark 75670 (MICH, type). 



28. Marlierea karuaiensis (Steyermark) McVaugh, comb. nov. 

 Aulomyrcia karuaiensis Steyermark, Fieldiana Bot. 28: 1005. 1957. 



Shrub, or tree to 8 m high ; leaves coriaceous, elliptic, 1.5-2.5 cm wide, 4-5.5 

 cm long, 2.3-3 times as long as wide, about equally narrowed to the obtuse apex 

 and the acute base, the margins decurrent on a ventrally sulcate petiolar base 

 1.5 mm thick; midvein impressed as a broad V-shaped trough; marginal vein 

 0.5-1 mm from the margin ; margins revolute ; upper surface nearly featureless 

 or somewhat impressed-puncticulate ; inflorescence of paired panicles 2-2.5 cm 

 long, 5-9-flowered; buds narrowly obovoid, 3 mm long; hypanthium in anthesis 

 campanulate, about 2 mm long and 2 mm wide at the mouth, the thin margin 

 and lobes reflexed ; style 3-3.5 mm long*; calyx-lobes 4, erect, cucullate and closed 

 over the immature bud and somewhat thickened on the backs near apex, in un- 

 equal pairs, the outer rounded, 0.5 mm lone and wide, the inner 0.5 mm long, 

 1 mm wide ; petals 4, irregularly margined, rotund or broader than long, 1-1.3 

 mm long,. 1.3-1.5 mm wide; stamens 50-60, 2-3 mm long; anthers about 0.3 mm 



