THE BOTANY OF THE GUAYANA HIGHLAND— PART II 



387 



12. Stenopadus cucullatus Maguire & Wurdack, sp. nov. (Fig. 72.) 



Arbor mediocris vel 20 m alta, 30 cm diam.; ramulis teretibus, compacte 

 fulvo-sericeis cum trichomis malpighioideis; foliis alternatis, laminis glabris 

 firme chartaceis, valde reticularis; plus minusve ellipticis, 12-24 cm longis, 

 6-11 cm latis, apice obtuso vel late breviacuminato saepe conduplicato, basi 

 acutiuscula saepe inaequilatera conduplicataque; petiolo 2-3 cm longo, tenuiter 

 sericeo, (in sicco) sulcato; capitulo solitario, terminali, sessili, majusculo plus 

 minusve 100-floro homogamo; involucro hemisphaerico vel late campanulato, 

 3.5-4.5 cm alto, 10-12-seriato; phyllariis plus minusve 100, gradatis, inferioribus 

 12-15 mm longis, lanceolatis obtusis externe puberulis; superioribus 15-38 mm 

 longis & 8 mm latis 5 glabris deorsum 5 late obtuse cucullatis, marginibus scariosis; 

 intimis lineari-oblongis vel oblanceolatis, ca. 3 mm latis, glabris deorsum, 

 receptaculo piano, glabro, alveolato, numerose paleaceis, paleis phyllariis 

 interioribus similibus sed 0.6-0.8 mm latis, ad apicem dilatatis; corollis sub- 

 carnosis, tubo 20-22 mm longo, subventricoso-hypocrateriformi, lobis 12-14 mm 

 longis, valde circinnatis, acutis; filamentis ca. 10 mm longis, in sinibus affixis; 

 antheris ca. 14 mm longis, appendicibus apicalibus 3-4 mm longis, acutis, 

 appendicibus caudalibus sagittatis, 3 mm longis, linearibus, glabris, acutis, 

 adjacentibus omnino connatis; stylis subulatis ca. 50 mm longis, sursum as- 

 perulis, ramulis ca. 1.2-1.4 mm longis, obtusis, non different! a tis; achaeniis 

 prismaticis glabris fusco-rubris 10-nervatis, ca. 10 mm longis; annulo in- 

 conspicuo; corona 0.7-0.8 mm alta, aliquantum prismatica, persparse pilosa 

 ad apicem; pappo stramineo ca. 25 mm longo, setis 4-5-seriatis, filiformibus 

 aliquantum compressis ad basim, minute barbellatis sursum. 



TYPE: tree to 20 m high, 25 cm diam., involucral bracts russet-brown; 

 corollas and styles lavender; anthers yellow; occasional in mixed montane forest 

 at 1000 m alt., Cerro Yutaje, Rio Manapiare, Terr. Amazonas, Venezuela, Feb- 

 ruary 4, 1953, B. Maguire & C. K. Maguire 35053 (NY). Paratypes: Cerro Yutaje: 

 tree 5-8 m high, Maguire & Maguire 35029; tree 8 m high, 1400 m alt., Maguire & 

 Maguire 35120. Cerro Coro-Coro, Serrania Yutaje: tree 3-6 m, Maguire & Maguire 

 35459; 1200 m alt., Maguire & Maguire 35491. 



13. Stenopadus cardonae Maguire & Lasser, Mem. N. Y. Bot. Gard. 8: 150. 1953. 

 TYPE: Cerro Arepauchi, Rio Caronf, Bolivar, Venezuela, Cardona 1181 (NY). 

 Distribution. Small trees of the Gran Sabana, Venezuela,, and adjacent British 



Guiana. 



14. Stenopadus affinis Maguire, Steyermark & Wurdack. 

 Described in ft 3otany of the Chimanta Massif." 20 



15. Stenopadus colombianus Cuatrecasas & Steyermark, Bot. Mus. Leafe. 17: 



99. 1955. 



TYPE: Cerro Isibukuri, Rio Kananari, Vaupes, Colombia, Schultes & Cabrera 

 15031 (F). 



Known only by the type collection. 



Mem. N. Y. Bot. Gard. 9:393-439- 1957. 



Explanation of figure 72 



FIG. 72. a-e, Stenopadus cucullatus. a, habit, X Vi ; b, phyllaries, X l l A ; c, corolla, 

 X l l / 2 ; d, diagramatic representation of portion of the base of the anthers showing the 

 caudal appendages, X 10; e, style branches, X 10. /-z, Stomatochaeta cylindrica. f, habit, 

 X x /i\ g, corolla, X 2; h, portion of anther base, X 20; i, style branches, X 10. 



