ON SOUTH-AMEEICAN APOCTNACE^. 255 



at its base, rises laterally from the node, and is furnished above with several laxly 

 alternate flowers upon longish pedicels, thus contrasting ostensibly with Frestonia, 

 where the peduncle, always branching, rises out of a cluster of stipuloid scales, and 

 bears numerous almost sessile flowers generally aggregated in capitate heads ; the disk 

 also consists of 5 free fleshy erect lobes (not combined into a cylindrical cup) ; the 2 

 follicles are always divaricately separate, long, narrow, and torulose (not combined into 

 a long, stout, 2-ceUed capsule). Other minor differences exist, as the following amended 

 diagnosis wUl show. 



H^MADiCTYON, Lindl. (char, emend.) : Prestonia (in parte) Benth. & Hook, (non aUorum) . Sepala aut 

 minora et lineari-acuminata, vel majora et acute ovata, membranacea^ intus squamula acute lineari 

 apice 3-dentata munita. Corolla hypocraterif ormis ; tubus latiuscule cylindricus, fauce subcon- 

 strictus, et ibi annulo integro signatus, remotiuscule sub ore segmentis alternis, appendicibus 5 anguste 

 linearibus bidenticulatis apice exsertis instructus; segmenta obtuse insequilatera et deltoidea, tubo 

 subbreviora, dextrorsum convoluta. Stamina 5, e pilis retrorsis in cristulas totidem, medio tubi inserta, 

 apice vix exserta, in conum subcohserentia ; filamenta brevia^ retrorsum ciliata ; anther <b lineari- 

 acuminatae, imo divergenter biaristatse. Discus e lobis 5, erectis^ obtuse oblongis, intus canaliculatis, 

 carnosis constans j ovaria 2, ovata^ disco sequilonga ; stylus tenuis ; clavuncula incrassata, imo 

 indusiata ; stigmata 2, parva, ovata, terminalia. Folliculi 2, longi, teretes, subtorulosi, plus minusve 

 divergentes, Semina plurima, oblonga, dorso costata, ventre raphe longitudinali signata. Embryo in 

 albumine ; cotyledonibus 2, oblongis, foliaceis ; radicula tenuiter tereti supera his breviore. 



Suffiratices America meridionalis scandentes ; rami cum axillis remotis nude dilatatis ; folia ob- 

 longa, opposita, sape subtranslucentia et eleganter venosa, petiolata ; inflorescentia laterali, simpliciter 

 longe pedunculata ; flores laxe alterni, tenuiter pedicellati et bracteolati. 



1. H^MADicTYON VENOSTTM, Lindl. Traus. Hort. Soc. vi. p. 71 : Hcemadictyon nutans, A. DC. Prodr. viii. 



p. 426 : Echites nutans, Anderson, Bot. Mag. li. tab. 2473; Griseb. Fl. Br. W. Ind. p. 413 : Echites 

 sanguinolenta, Juss., Tussac. Fl. Ant. i. tab. 11 ; A. DC. I. c. p. 413. In Amer. merid. et Antillis : 

 V. s. in herb. Mus. Brit. Amer. merid. (Shakespear, sub Tabernmmontana axillaris) . 



A climbing species with smooth branches ; leaves oblong-ovate, acute at the base, nar- 

 rovring upwards into an acute reflected point, submembranaceous or chartaceous, sub- 

 translucent, very glabrous, with about 9 pairs of reddish fine nerves arcuately conjoined, 

 with reticulated veins, margins scarcely re volute, pale -green above, yellowish -opake 

 beneath, with slightly prominulent midrib and nerves, 4-10 in. long, li-2^ in. broad, 

 on slender petioles 2-4 lines long conjoined by a transverse ridge across the node ; 

 racemes solitary and lateral at each axil, 2J in. long, on a peduncle bare at the base for 

 6 liaes, beariag above several alternate flowers on pedicels 3 Hnes long, based by small 

 bracteoles; sepals spathulate-lanceolate, 4 lines long, with an inner linear-pointed, denti- 

 culate scale ; corolla greenish-yeUow, its tube 7-8 lines long, having a narrow ring in 

 the mouth, and below it 6 subulate appendages a little exserted; segments ovate, 

 obtusely ine(5[uilateral, crispate and subreflexed, 4 lines long ; disk half-cleft into 5 lobes, 

 a little shorter than the 2 ovaries. 



2. HiEMADiCTYON EXSEETTJM, A. DC. l.c, p. 426; Schlccht. Linn. xxvi. 661. In Venezuela, ad Caracas: 



nan vidi. 



A climbing species, with slender pubescent branches ; leaves elliptic-oblong, acute at 



