ON SOUTH-AMEEICAN APOCTNACE^. 159 



ring ; anthers purplish., coherent, with 2 parallel, obtuse, basal spurs ; follicles 2, erect, 

 incurved, slender, terete, 2^-3 in. long, lj;iine thick; immature seeds 1^ line long, 

 very compressed, obspathulate, fixed round a thickish placenta, with a deciduous coma 

 of few silky hairs the length of the testa. 



A drawing of this species, in fiower and fruit, with the analysis of its flower and a 

 figure of its seed, are given in Plate XXIII. 



2. MicRADENiA ATROTioLACEA, nob. : EcMtes atroviolacea, Stadelm. Bot. Zeit. 1841, p. 75 ; Gardn. Lond. 



Journ. Bot. i. 544: Dipladenia atroviolacea, A. DC. I. c. viii. 484; Miill. Flor. Bras. xxvi. p. 127. 

 In Brasilia prov. Rio de Janeiro, in montibus circa Tejuca, ad Pedra Bonita : v. v. et sice, in herb, 

 meo (3136) j v. s. in herb. Mus. Brit. (Gardner 249, ex eodem loco) . 



I found this plant on one of the spurs of the Tejuca range, in company with Gardner, 

 in 1836. It is a low, bushy plant, growing on rocky ground, with many, rather slender 

 subsarmentous branches, haviag approximate axils 4-6 lines apart, charged between 

 the petioles with several small warty excrescences, as in the former species ; the leaves 

 are lanceolate-oblong, subacute at the base, gradually or suddenly constricted near the 

 apex into a narrow acumen, subcoriaceous, pale green above, with a prominent fine midrib 

 and scarcely visible nerves, paler opake beneath, with a reddish prominulent midrib and 

 immersed nerves, 1^2 in. long, 6 lines broad,- on slender channelled petioles 3-5 lines long, 

 the leaves being erect and much imbricated near the ends of the branchlets ; racemes 

 axillary, pedunculate, bearing about 4 alternate flowers, on slender, spirally twisted 

 pedicels 6-8 lines long; sepals acuminately subulate, with membranaceous margins, 

 2J lines long ; tube of corolla 18 lines long, narrowed and scarlet at the base for a 

 length of 8 lines, above that suddenly bell-shaped cyhndrically, where it is white, 

 with reddish irregular stripes; segments rhomboid-oblong, of a dark, dxill red-brown 

 colour, 8 lines long, 6 lines broad, expanding above the mouth ; stamens nearly sessile 

 at the contraction of the tube ; anthers purple, coheriag, each with 2 obtuse, parallel, 

 basal spurs. 



Var. ovata, nob. : Echites atropurpurea, Lindley, in Paxton Mag. Bot. (1842) ; Bot. 

 Reg. vol. xxix. (1843), tab. 27 ; A. DO. I. c. p. 486. It differs in its more ovate leaves, 

 li— 1^ in. long, 9-11 lines broad, on slender petioles 5-6 lines long; its flowers are 

 exactly as those above described ; so that the different colouring given by Lindley must 

 be due to hot-house cultivation. 



I found this on the same spot and also at Pavuna, near Iguassu, in the same province. 



3. MicKADENiA NODULOSA, nob. : Dipladenia crassinoda, Lindley (uon Gardner), Bot. Reg. xxx. tab. 64 .- 



Dipladenia Martiana, var. glabra, Miill. I. c. p. 128. In Brasilia : v. s. in herb. Mus. Brit. prov. 

 Minas Geraes, ad Pico de Itabira (Sellow) : non vidi. 



A climbing plant, with very flexuose, hairy, dichotomous branches, having axils 2-4 in. 

 apart, which are much incrassate and charged on each face between the petioles with 

 about 6 subulate, reflexed, warty glands ; leaves ovate-elliptic, rounded at the base, with a 

 short acute acumen, thinly chartaceous, slightly revolute on the margin, olive-green 

 above, opake, obsoletely puberulous, shortly hispid on the deeply sulcate midrib, with 

 about 14 pairs of patent arcuately conjoined nerves, with others shorter and inter- 



