1953] 



REVISION OF BRACHYOTUM 



393 



branches, with the pedicels 3"5 mm. above the last leaves (bracteoles ?). Hypan- 

 thium $-6 x 5-5.5 mm., 0.8 mm. thick medianly, densely beset with stout patent 

 setae l-3/mm. 2 and to 5 X 1 mm. Sepals 9.5-10.5 x 5.5-6 mm., ovate to oblong- 

 ovate with the apices broadly acute, united at bases 0.5 mm., somewhat imbricate 

 basally, outside glabrous except for a few setae (to 2 mm. long) at the base of 

 the midrib. Petals 18-19 x 14-15 mm., obovate and slightly asymmetrical with the 

 apices rounded to broadly obtuse, the gland-tipped cilia 0.1-0.4 mm. Filaments 

 5-5.5 mm., as long as the anthers; connective at anther base 1-1.1 mm., free of 

 the anther 0.3-0.4 mm., ventrally not lobed. Style 21 x 0.6 mm., exserted 6 mm. 

 Ovary 5x3 mm., moderately long-strigulose on the apical 2.5 mm., the apical 

 lobes 0.7 mm. above the locules. 



Type Collection and Locality: Jameson s.n. (HOLOTYPE K); "prope Quito." 



Distribution: definitely known only from Prov. Loja, Ecuador. 



Azuay-Loja border: near "Tablon de Ona" between Nabon and Zaraguro, Rose, Pach- 

 ano & Rose 23094 (NY, US). Loja: near Loja, Jameson s.n. (US). Without Province: 

 Jameson s.n. (BR, US). 



The Jameson collection without definite locality was numbered 15 by Gray; it 

 seems possible that all of the Jameson specimens cited here are parts of one col- 

 lection and that the holotype was merely sent from, and not collected near, Quito 

 by Jameson. The Rose et al. collection is in fruit, but there is no possibility of 

 misidentification. 



The affinities of this species are quite obscure. Vegetatively it is quite simi- 

 lar to B. nutans or some of the glabrous forms of B. lindenii; the large sepals are 

 reminiscent of B. strigosum and B. fictum. The enormous hypanthial setae are 

 unique. 



34. Brachyotum ecuadorense Wurdack, sp. nov. 



Trichomata minutissime sparseque papillata. Ramuli novelli obscure quad- 

 rangulati, cum petiolis pedicellisque dense brevi-strigulosi. Petiolus 1-3 mm. 

 Lamina 4-7 x 2.5-5 mm. ovalis vel ovali-oblonga apice late acuta vel obtusa basi 

 obtusa, nervis primariis 3 supra impressis subtus expressis, secundariis obso- 

 letis; supra dense strigulosa, trichomatibus 7-8/mm. 2 conicis 0.1-0.3 mm. diam. 

 dimidio basali adhaerente apice libero per 0.2-0.5 mm.; subtus densissime strigu- 

 losa, setis conicis. Flores plerumque 5*meri, in ramulis brevibus adscendentibus 

 solitarii. Pedicellus super folia ultima 2-5 mm., foliis ultimis (bracteis ?) per- 

 sistentibus leviter extenuibus. Hypanthium 5.5-6.5x4-6 mm., medio 0.2 mm. 

 crassum dense strigulosum setis curvo-conicis 15/mm. 2 et 0.1-0.2 mm. diam. Se- 

 pala 5.5-6.5 x 3.5-4.5 mm. oblonga apice obtusa mucronata basi per 0.7-0.8 mm. 

 cohaerentii, sinu anguste acuto. Petala 12-19 x 11-15 mm. obovata symmetrica 

 apice truncata, ciliis non-glandulosis 0.1-0.2 mm. Filamenta 5.5-6 mm.; antherae 

 4.5-5.5 mm.; connectivum basi antherae 1.1-1.5 mm., ab anthera per 0.4-0.7 mm. 

 liberum, lobis ventralibus 0.6-0.9 mm. Stylus 22-24 x 0.6 mm., per 3-10 mm. ex- 

 sertus. Ovarium 6x3 mm. apice per 2 mm. dense strigulosum setis non-glandu- 

 losis, lobis apicalibus super loculos vix 0.1 mm. 



Type Collection and Locality: Prieto P-307 (HOLOTYPE NY); Ecuador, 

 Azuay-Oriente border, eastern cordillera between Ona and rio Yacuambi, crest, 

 ait. 10000-11200 ft., 10-19 Sep. 1945. "Plant single-stemmed below, branched 

 above, 0.5 m. Lvs deep green above. All parts of plant with minute processes. 

 Floral bracts, hypanthium & sepal lobes red. Corolla tubular-urceolate in outline, 

 nigrescent (by very strong transmitted light, petal color deep magenta-purple). 

 Filaments deep rose-magenta, anthers sulfur-yellow." Known only from the type 

 collection. 



The closest relative of B. ecuadorense seems to be B. fictum. B. ecuadorense 

 may be intermediate between this species and the poorly defined B. rosmarini- 



