398 



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



This species was described originally as having 4-merous flowers, but some 

 5-merous fruits. All except 1 of the 11 examinable flowers in Macbride & Feather- 

 stone 1870 p.p. were 5-merous, and all the fruits on the syntype were 5-merous^ 

 The trichomes of Woytkowski 326 are smooth and it may well be that this speci- 

 men represents "pure" B. rosmarini folium, since the Macbride & Featherstone 

 collection is part of the hybrid mixture described under B. lutes cens; the tri- 

 chomes on the syntype are very minutely and sparsely roughened, and some of the 

 vegetative hairs are gland-tipped, so this specimen too may be the result of the 

 introgression of B. lutescens. The salient features of B. rosmarinifolium seem to 

 be the ternate inflorescences, firm oblong sepals, large anther appendages, and 

 gland-tipped ovary hairs. 



41. Brachyotum figueroae Macbride, Field Mus. Pub. Bot. 4: 173. 1929- 

 Trichomes moderately and densely roughened. Branchlets obscurely quad- 

 rangular, densely hirsute, the hairs to 2 mm. long and a very few of them gland- 

 tipped. Petiole 2-3 mm. Blade 7-12 x 4-7 mm., elliptic to ovate-elliptic with the 

 apex acute and the base broadly acute to obtuse, the 3 primaries impressed above 

 and elevated below, the 8-10 pairs of secondaries completely obscured by the 

 pubescence; above densely long-strigulose, the hairs 8-10/mm. 2 , each on a low 

 bulla with the basal % of the hair adherent (to 0.3 mm. diam.) and the free apical 

 portion rather abruptly attenuate; below very densely hirsutulous. Flowers pre- 

 dominantly 5-merous, ternate or with an additional pair of flowers at the node be- 

 low the dichasial node, the persistent leaves subtending the dichasium slightly 

 reduced, the peduncle not differentiated. Pedicel 1-3 mm. below the bracteoles, 

 2-4 mm. above; pedicellar bracteoles 2.5-3.5 x 0.2-0.4 mm., narrowly spatulate, 

 persistent at least until anthesis, above glabrous, below moderately loose-strigu- 

 lose. Hypanthium 7x 5.5 mm., 0.3 mm. thick medianly, sparsely strigulose 7- 

 12/mm. 2 Sepals 5-5.5x4-4.5 mm., oblong-ovate with the apices broadly blunt- 

 acute, united at bases 0.4-0.6 mm., the sinuses acute. Petals "whitish," 10-12 x 

 7.5-9.5 mm., asymmetrically obovate with the apices obliquely truncate, the gland- 

 tipped cilia 0.1-0.2 mm. (the apical few to 0.5 mm.). Filaments 5-5.5 mm.; an- 

 thers 6-6.5 mm.; connective at anther base 1-1.3 mm., free of the anther 0*3-0.5 

 mm., the ventral lobing 0.5-0.7 mm. Style 24 x 0.6 mm., exserted 9 mm. Ovary 6.5 

 x 3.5 mm., densely strigose with gland-tipped hairs on the apical 3 mm., the ap- 

 ical lobes 0.3 mm. above the locules. 



Type Collection and Locality: Macbride & Featherstone 2504 (HOLOTYPE 

 F; isotypes G-DEL, NY); Peru, Dept. Ancash, "Catuc" 25 km. east of Huaras. 

 Known only from the type collection. 



Vernacular Name: Cotchkis bianco. 



All of the 21 examinable flowers were 5-merous. Macbride apparently saw a 

 few 4°merous flowers since he cited the flowers as 4- or 5-merous. 



That B. figueroae should be maintained as distinct from the B. rostratum com- 

 plex is extremely doubtful. The only character separating the species is the dis- 

 tinct development of anther tubercles in B. figueroae. Slight tendencies in this 

 direction have been observed in the "trianae" element of B. rostratum (up to 0.15 

 mm. free of the anther). B. figueroae probably represents another degree of sort- 

 ing-out of the complex between B. rostratum and B. rosmarinifolium. 



42. Brachyotum rostratum (Naudin) Triana, Trans. Linn. Soc. ,28: 48. 1871. 



Chaetogastra rostrata Naudin; Ann. Sci. Nat. III. 14: 135. 1850. 

 Chaetogastra microphylla Naudin, Ann. Sci. Nat. III. 14: 136. 1850. 



Brachyotum microphyllum (Naud.) Triana, Trans. Linn. Soc. 28: 49* 1871. Non sensu 



Cogniaux; DC. Monog. Phan. 7: 164. 1891. 

 Brachyotum trianaei Cogniaux, DC. Monog. Phan. 7: 167. 1891. 

 Brachyotum callosum Macbride, Field Mus. Pub. Bot. 4: 172. 1929. 



