ON SOUTH-AMERICAN APOCYNACEiE, 173 



supported by ovate, ciliolate, puberulous bracteoles ; sepals obtuse, ciliolate ; tube of 

 corolla thickened at the base, constricted in the middle, funnel-shaped above. 



14, Anisolobus rubidulus, nob. : glaberrimus, ramulis tenuibus, rubescentibus, striolatis ; axillis stipulis 

 parvis utrinque munitis : foliis oppositis, ellipticis, imo obtusis, apice sensim acuminatis, chartaceis, 

 supra pallide viridulis, rufescentibus, nervis subpatentibus, arcuatim nexis, subimmersis, subtus paullo 

 pallidioribus, nervis tenuibus prominulis, venis transversis valde reticulatis ; petiolo tenui, sulcato, 

 quam limbus 15plo breviore : panicula terminali, trichotome divisa, multiflora ; pedicellis tenuibns, 

 petiolo dupio longioribus ; sepalis 5, oblongis, obtusis, rubidulis, marginibus membranaceis, valde 

 imbricatis, adpressis, subinsequalibus, singulatim squamulis 3 intus munitis j coroUse tubo imo anguste 

 cylindrico, superne infundibuliformi ; segmentis oblongo-dolabriformibus, expansis ; staminibus in 

 contractionem tubi insertis ; disco eylindrico, 5-sulcato, obtuse denticulata, ovariis 2 oblongis pilosulis 

 paullo breviore. In Guiana : v. s. in herb. Mus. Brit. Cayenne (Martin) . 



A slender plant, with axils 1 in. apart ; leaves 2^-3f in. long, li- IJ in. broad, on 

 petioles 2-3 lines long ; panicle 2 in. long, spreading ; pedicels 6 lines long ; sepals 2|^ 

 lines long, 1 line broad ; tube 11 lines long, contracted from the middle downwards ; seg- 

 ments 5 lines long and broad. 



Angadbnia. 



This genus is proposed for a small group of fruticose plants, erect or scandent, chiefly 

 referred by Miiller to Odontadenia and Anisolobus, differing from the former in their 

 floral and carpical characters, and from the latter in their small, equal, coriaceous 

 sepals, and in the shape and mode of aestivation of the segments of the corolla, and other 

 features. 



Angadenia*, nob. : Sepala 5, parva, sequalia, subacuta, coriacea, marginibus ssepe angustissime pellucidis, 

 quincuncialiter subimbricatis, intus squamulis totidem bidentatis munita. Corolla tubulosa; tubus 

 pro dimidia parte infera anguste cylindricuSj superne infundibuliformi-campanulatus ; segmenta do- 

 labriformia, angulo sinistro acuta, latere altero rotundatim expansa, sestivatione simpliciter dex- 

 trorsum convoluta. Stamina 5, inclusa, ad constrictionem tubi inserta ; filamenta brevia, complanata ; 

 anthera cuspidato-lineares, imo in furcas 2 breves acutas fissae ; clavunculse agglutinatione in conum 

 cohaerentes. Discus majusculus, vasiformis, crassus, ore denticulatus. Ovaria 2, acute oblonga, 

 discum paullo superantia. Stylus tenuis ; clavuncula incrassata, cylindrica, imo membrana peltata 

 apophysata ; stigmata 2, minima, acuta, terminalia. Folliculi 2, robuste fusiformes, horizontaliter 

 divaricati, sutura ventrali dehiscentes. Semina plurima, linearia, coma densa, longa, erecta, penicil- 

 liformi coronata. 



Frutices America meridionalis ramosi ; rami sape scandentes ad nodos breviter stipulacei : folia 

 opposita, ovata vel elliptico-oblonga, smpe cor data, coriacea, petiolata; paniculse axillares aut terminates, 

 plurifiorce ; flores subspeciosi, pedicellati. 



1. Angadenia hypoglauoa, nob. : Echites hypoglauca, Stadelm. Bot. Zeit. 1841, p. 123 ; A. DC. /. c. p. 

 448: Odontadenia hypoglauca, Miill. (in parte) Fl. Bras. xxvi. p. 118, tab. 35 b. In Brasilia, prov. 

 Bahia et Pernambuco : non vidi. 



A climbing plant, with slender, flexuous, glabrous branches, having axils 5 in. apart, 

 bearing on their transverse ridge 2 thick ovate or linear-oblong glands ; leaves ovate- 

 oblong, cordate at the base, rounded and emarginate at the summit, very glabrous above, 



* Prom ayyefx (vasa), aS/jv (glandula), from its ureeolated disk. 



