390 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 8, No. 4 



guished from B. strigosum by the much finer hypanthial pubescence and 4-sepaled 

 fruits. The more pubescent forms of B. lindenii are distinguishable by the differ- 

 ent inflorescences, sepals, and petals. 



30. Brachyotum jamesonii Triana, Trans. Linn. Soc. 28: 49. 1871. 



Trichomes smooth, slender. Branchlets obscurely quadrangular, sparsely to 

 moderately strigulose. Petiole 2-6 mm. Blade 6-12(-l6)x 3-6 mm., lanceolate- 

 elliptic to ovate with the apex bluntly acute and the base broadly acute to ob- 

 tuse, the 3 primaries impressed above and elevated below, the secondaries more or 

 less obsolete; above sparsely strigulose, the hairs (2-)4-7(-9)/mm. 2 with their 

 basal l 4~ l A adherent; below sparsely loose-strigulose to hirsutulous, the surface 

 hairs 6-9/mm. 2 and each subtended by a cluster of glands. Flowers constantly 4- 

 merous, ternate on short lateral or terminal branches with each flower closely in- 

 vested by 2 persistent bracts and the dichasium invested by 2 similar bracts which 

 are inserted at the base of the dichasium, or less frequently solitary and invested 

 by 4 bracts; peduncle 3-15 mm. above the last leaves and 1-2 mm. diam., cer- 

 nuous. Bracts elliptic to ovate with the apices acute to rounded, 5-9-nerved, out- 

 side centrally moderately strigulose but marginally nearly or quite glabrous; pe- 

 duncular bracts (in ternate inflorescences) 9-18x4.5-7 mm.; pedicellar bracts 

 6-9.5 x (3.5")5-7.5 mm., the pedicel 2-4 mm. long below them, 0-1 mm. above. 

 Hypanthium 5-8.5 x 4-5 mm., 0.2 mm. thick medianly, moderately to densely stri- 

 gose, the hairs 5-12/mm. 2 and to 2.5"3.5 mm. long. Sepals 3.5-6.5 x 3*6 mm., 

 ovate to oblong-ovate with the apices broadly acute to obtuse, united at bases 

 0.2-0.4 mm. and sometimes slightly imbricate. Petals deep purple, 14-16 x 11-15 

 mm., obovate and slightly asymmetrical with the apices obtuse to rounded, the 

 gland-tipped cilia 0.1-0.3 mm. Filaments 2.5"5 mm.; anthers 3-6.5 mm.; connec- 

 tive at anther base 0.8-1.5 mm., free of the anther 0.3-0.8 mm., the ventral lobing 

 0.2-0.4 mm. Style 17-28 x 0.4-0.6 mm., exserted 4-10 mm. Ovary 5-6.5 x 2.5-3.5 

 mm., moderately short-strigulose on the apical 2-3.5 mm., the apical lobes 0.7- 

 1.4 mm. above the locules. 



Type Collection and Locality: Spruce 6031 (HOLOTYPE K; isotypes BR, G- 

 BOIS, G-DEL, GH, NY, P, W); Ecuador, southeastern Prov. Chimborazo. near 

 Prov. Canar border, "in m. Azuay, loco Runa-rupashca, 12,000 p. Aug. 1859" 

 (fide holotype). 



Type Photographs: Gleason 87-1 (isotype at K); F25863 (isotype at G-DC). 

 Distribution: central Ecuador, alt. 3000-4000 m. 



Chimborazo: Pangor and "Huangopud," Lehmann 5794 (F, GH, K, S, US). Canar: near 

 Canar, Rose & Rose 22765 (GH, NY, US); Cerro Bueran, Fosberg & Giler 22648 (NA, NY); 

 Pillzhum, Jameson 22 (GH). Azuay: "Toreador" between Molleturo and Quinoa, Steyer- 

 mark 53193 (F, NY); along Ri'o Matadero west of Cuenca, Camp E-1998A (NY), Camp 

 E-1998B £NY); Paramo de^Tinajillas, Camp E-2278 (NY); near Nabon, Rose & Pachano & 

 Rose 23003 (US). Without locality: "Perou," Bonpland s.n. (P). 



The number of the type collection was misprinted as "6081" in the original 

 publication. 



B. jamesonii may be distinguished from its near relative, B, confertum, by its 

 constantly 4-merous flowers, usually broadly acute-tipped innermost pair of floral 

 bracts, less densely pubescent hypanthium, with the hairs whitish rather than 

 tawny to yellowish, more acute sepals, and non-glandular ovary hairs. Some flow- 

 ers in Lehmann 5794 have early-caducous glandular tips on the hypanthial hairs. 



31. Brachyotum confertum (Bonpl.) Triana, Trans. Linn. Soc. 28: 49* 1871. 



Rhexia conjerta Bonpl. Rhexies 53. 1808. 

 Chaetogastra conjerta (Bonpl.) DC. Prodr. 3: 135. 1828. 



