1953] 



REVISION OF BRACHYOTUM 



365 



sis subtus expressis sed cum nervis secundariis plerumque ab pilis occultis; su- 

 pra dense strigosa, pilis 4-5/mm. 2 , basi 0.5-0.6 mm. diam. et 0.5-0,8 mm. alta 

 radicina, apice abrupte attenuato 0.5-0.6 mm. longo; subtus densissime laxeque 

 sericeo-strigulosa. Flores 5*meri in ramulis brevibus solitarii bracteis 4 conjuncte 

 investi, pedicello super bracteas 1-2 mm. Bracteae 9-11 x 8-9 mm., orbiculares 

 vel ovato-orbiculares, apice subretusae, nervis principalibus 9-11, intus glabrae, 

 extus dense strigulosae 18-20/mm. 2 , duabus exterioribus valde caducis interiori- 

 bus persistentibus. Hypanthium 8x9 mm., medio 0.5 mm. crassum, densissime 

 sericeo-strigosum pilis 12-15/mm. 2 et ad 2-2.5 mm. longis. Sepala 5.5-6.5 x 5-6 

 mm., late ovata, vix imbricata, apice late acuta et apiculata, basi per 0.6-0.8 mm. 

 cohaerentia. Petala 16-17 x 16-17 mm., obovata vix asymmetrica, apice truncata, 

 ciliis glandulosis 0.1-0.4 mm. Filamenta 6.5 mm.; antherae 5.5-6 mm.; connec- 

 tivum basi antherae 1-1.5 mm., ab anthera per 0.3-0.5 mm. liberum, lobis ven- 

 tralibus 0.4-0.7 mm. Stylus 18 x 1 mm., non vel vix (1 mm.) exsertus, parte ter- 

 tia proxima dense brevi-strigosa et expansa 2 mm. diam. Ovarium 3.5 x 4.5 mm., 

 apice per 2.5 mm. dense brevi-strigosa, lobis apicalibus super loculos 0.2 mm. 



Type Collection and Locality: Camp E-1629 (HOLOTYPE NY); Ecuador, 

 Azuay-Oriente border, Paramo del Castillo and surrounding forested areas, crest 

 of the eastern Cordillera on the trail between Sevilla de Oro and Mendez, 11000- 

 11350 ft. alt., 17 Dec. 1944. "Shrubs 1-2 m. Pubescence on stems brown. Lvs 

 deep green above, very pale yellowish below. Bracts red, or red tipped with green; 

 green part (when present) with texture of leaf; red part smooth and shining. Co- 

 rolla never fully open, tubiform, black with purplish tinge." Known only from the 

 type collection. 



B, campii is at once distinguished from all other known species of the genus 

 by the style, with the enlarged basal % densely clothed with slender arcuate hairs 

 0.5-1.5 mm. long. Several other species occasionally have a very few erect setae 

 on the style, but never as a characteristic feature. In this respect, B. campii par- 

 allels the pubescent-styled species of Tiboucbina, which have been scattered 

 through the first three sections of that genus byCogniaux, and some of which also 

 have bract-invested flowers. The non-exserted style of B. campii is also unique. 

 Apart from the style, this species is closely related to B. andreanum, but may 

 further be distinguished from that species by the non-imbricate sepals and orbic- 

 ular flower bracts. 



6. Brachyotum rotundifolium Cogniaux, Bull. Acad. Sci. Brux. III. 14: 937. 1887. 



Trichomes smooth. Branchlets obscurely quadrangular, very densely-rufo- 

 hirsutulous. Petiole 6-7 mm. Blade 12-23 x 12-20 mm., orbicular to ovate-orbicu- 

 lar with the apex rounded and the base truncate, the 7 primaries and 11-14 pairs 

 of secondaries impressed above and elevated below but hidden by the pubescence; 

 above densely short-strigose, the hairs 6-10/mm. 2 , each about 0.2 mm. diam. and 

 the basal %-V 2 adherent but the apical free portion not abruptly contracted; below 

 very densely rufo-hirsutulous 25-45/mm. 2 Flowers 4-merous, crowded-ternate with 

 the dichasium subtended by somewhat reduced leaves, occasionally with an ad- 

 ditional pair of flowers at the node below the dichasial node. Pedicel 3 mm. be- 

 low bracteoles, 4 mm. above; pedicellar bracteoles 11 x 2.5 mm,, slightly spatu- 

 late with acute apices, 3~nerved, caducous before anthesis, above sparsely pu- 

 berulent at extreme apex, below densely rufo-hirsutulous on entire surface. Hy- 

 panthium 5.5 x 5 mm., 0.3 mm. thick medianly, densely loose-rufo-strigose 11- 

 12/mm. 2 Sepals 6.5-7x4.5 mm., ovate and very slightly imbricate with acute 

 apices, united at bases 0.8 mm. Petals "purpureo-violacea," 13-13.5 x 9.5-10.5 

 mm., slightly and asymmetrically obovate with narrowly obtuse apices, the cilia 

 0.1-0.3 mm. and eglandular except for a few basal ones. Filaments 5 mm.; anthers 



