﻿490 Rusby : An Enumeration of 



Junction of Rivers Beni and Madre de Dios, Aug., 1886 (no. 

 2526). 



Secoiidatia densifiora A. DC. Prod. 8 : 445. {Fide Britton.) 

 Falls of Madeira, Brazil, Oct., 1886 (no. 2392). 



Laubcrtia sp. (?), Beni River, July, 1886 (no. 2599). 



This curious specimen, which Dr. Britton thought might be- 



'locarp 



but it is in fruit and the fruit of Laubcrtia is not known. 



Echites brachyloba Miers, Apocyn. S. Am. 203 {Amblyanthcra 

 brachyloba Muell. Arg. Linnaea, 30: 423. 1859-60). Mapiri. 

 2500 ft., May, 1886 (no. 2585). The same as Mathew's no. 820. 



Echites sps. Nos. 2383, 2390 and 2393 belong to this ge- 

 nus, but none are in a fit state for a positive determination. The 

 first may be a form of E. trifida Jacq. 



Dipladcuia, species apparently undescribed. Reis, Bolivia, 

 1500 ft, June, 1886 (no. 2694). 



Mandevilla Boliviana (Britton). (Echites Boliviana Britton 

 ex Rusby, Mem. Torr. Bot. Club, 4 : 219). Guanai, 2000 ft, May, 

 1886 (no. 2380), Yungas, 4000 ft. (no. 2381 ) and Mapiri, 5000 ft., 

 April, 1886 (no. 2382). The type is Bang's no. 1687. 



Mandevilla Mandont sp. now 



Glabrous, except the lower leaf-surfaces : branches terete, 

 slender, purple, the internodes 1-1.5 dm. long: petioles I— 1-5 

 cm. long, stoutish, purple; blades 8-10 cm. long, 4-6 cm. broad, 

 cordate, abruptly acuminate and very acute, finely soft-tomentose 

 and finely reticulate underneath, the venation not prominent : pe- 

 duncle pseudo-axillary, 1 dm. long, stoutish ; the raceme loose, 

 about 8- [5 -flowered; pedicels about 2.5 cm. long, the bracts 5-7 

 mm. long, subulate, weak, deciduous : calyx 1 cm. long, cleft to 

 the base, the segments narrow, tapering from the base to an acute 

 point: corolla hypocrateriform, the tube nearly cylindrical, 2.5-3 

 cm. long, 5 mm. broad, as pressed, the limb imperfect in the spec- 

 imen, apparently 2-2.5 cm. broad. 



Sorata, 8000 ft., Feb., 1886 (no. 2386). Very near M. Battgtt, 

 but the form, texture and indumentum of the leaves is quite dis- 

 tinct. Dr. Britton thinks it identical with Mandons no. H7 2 > 

 which I have not seen. 



Nos. 2379 and 2394 are apparently in this genus, but are un- 

 fit for diagnosis. 



