14 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



VENEZUELA: Amazonas: Cerro de la Neblina, abundant and dominant along stream- 

 course in open savanna, 12 km sw Cumbre Camp; alt. 2000 m; flexuous shrub 0.3-2.0 m high, 

 flowers white, petals pale yellow at base; Maguire, Wurdack Maguire 42288 (holotype, NY). 

 Cerro de la Neblina, alt. 1800 m, Maguire, Wurdack $ Bunting 37352 (paratype) ; alt. 2000 m, 

 Maguire, Wurdack #• Maguire 42262 (paratype) ; alt. 1900 m, shrub 0.5-3.0 m high, petals 

 white, pale orange at base, Maguire, Wurdack Maguire 42372 (paratype). 



Known only from streamside habitats on the summit of Cerro de la Neblina, 

 but there often abundant and exerting dominance. 



Tyleria tremuloidea Maguire & Wurdack, sp. nov. Fig. 25G. 



Frutex vel arbor parva ad 6 m altam ; ramis ramulisque candelabriformibus, 

 ramulis teretibus lucidis rubritinctis, 2-3 mm diam., internodiis 2-4 mm longis; 

 f oliis alternates belle tremulis adscendentibus ; stipulis amplexicaulibus caducis 

 integris lanceolatis 6-8 cm longis ca. 8 mm latis circum gemmas valde involutis ; 

 petiolis tenuibus compressis 0.7-1.0 mm latis, 12-18 mm longis; laminis firme 

 subcoriaeeis supra lucidis, lanceolatis 10-16 mm latis, 4.5-6.0 cm longis, ad basim 

 plus minusve acutis, ad apicem anguste acutis, in aristam 5-7 mm longam 

 productis; inflorescentiis terminalibus racemosis 2-4-floribus, 4—6 cm longis; 

 bracteis primariis. cum stipulis praeditis, 0.5-1.5 cm longis, aristatis; bracteis 

 secondares sine stipulis, deinceps parvioribus, exaristatis ; pedicellis vulgo 12-15 



Fig. 27. Aa-f, B, Adenanthe licarpellata ; Aa, habit, X 0.5; Ab, diagram of flower, X 

 0.75; Ae, inner tangential view of segment of corona, and stamen, X 2; Ad, capsule, showing 

 persistent calyx and corona, Xl-25; Ae, cross section of capsule, Xl-25; Af, seed, X3.75. 

 B, leaf showing position of stipules, X 0.375. Ca-e, Adenarake muriculata; Ca, leaf, X 0.25; 

 CI), stipule, X 2.5; Cc, flower, 0.75; Cd, inner tangential view of segment of corona, and 

 stamen, X 2.5; Ce, capsule, X 1.5; Cf, cross section of ovary, X 1-5; Cg, seed X 10. 



