218 ON SOUTH-AMEEICAN APOCYNACE^. 



convoluta. Stamina ad constrictionem tnbi inserta ; filamenta complanata, dense puberula ; anthera 

 HneareSj CTispidataB, imo in furcas 2 parallelas obtusas fissse, dorso hispidulse. Discus e lobis 5 car- 

 nosis, truncatisj subconnatis. Ovaria 2, disco paullo longiora. Stylus tenuis; clavuncula oblonga, 

 imo membrana peltata snflrulta ; stigmata 3, terminalia, minima. FoUiculi 2, tenuiter teretesj liberi 

 et erectitisculi, aut arcuati et apiee nexi. Semina plurima, oblonga, raphe longitudinali notata; 

 coma ampla, elastice expansa, duplo longior. 



Sufirutiees Americte meridionalis, debiles, satpius volubiles ; folia opposita, mediocria, oblonga, scepe 

 cor data, acuta, subbreviter petiolata ; racemi laterales, alternatim pluriflori ; flores mediocres, pedi- 

 cellati ; fructus foUicularis. 



1. MiTozus ExiLis, nob.: Amblyanthera funiformis,'<fax. pedunculata, Miill. Fl. Bras. xxvi. p.p. 144. In 

 prov. Eio de Janeiro, ad Mage : v. v. et sice, in herb, meo (no. 3436) . 



This plant, whicli I found in 1837, is evidently identical with Miiller's variety above 

 cited; but it is a species extremely different from that of Velloz. Its very twining 

 branches are extremely slender, scarcely ^ line thick, dilated at the axils, the lower 

 ones being 3 in., the upper ones 1^2 in. apart, and furnished with 2 almost obsolete 

 stipules ; its oblong-ovate leaves are cordate at the base, contracted near the summit 

 into a long, narrow, acute, acumen, submembranaceous, pale green above, with slender 

 immersed nerves, yeUowish-opake beneath, with immersed reddish nerves, 1-lf in. long, 

 6-9 lines broad, on petioles 3-4 lines long ; raceme lateral, on a peduncle 1 in. long, 

 slender, bearing at its apex 6-8 flowers alternately approximate, on pedicels 5 lines 

 long, with a small bracteole at their base ; sepals ovate, acute, 1 line long ; tube of 

 coroUa (still in bud) cylindrical below, swelling above, 12 lines long ; segments 6 lines 

 long, with dextrorse convolution ; stamens inserted in the constriction of the tube, on a 

 pilose ring ; anthers acuminate, dorsaUy subhispid, with 2 narrow, parallel, obtuse basal 

 prongs ; disk of 5 fleshy truncated connate lobes, as long as the 2 conical ovaries ; 

 fructiferous peduncle 1 in. long ; pedicel 9 lines long ; foUicles 2, arcuate and conjoined 

 at the summit, 3 in. long, f line thick ; seeds 2 Hues long, with a spreading, reddish- 

 yellow coma S^ lines long. 



A drawing of this plant, in flower and in fruit, is given in Plate XXXI. 



2. MiTOZus Gtjanabaricus, nob. : Echites Guanabarica, Casar. Nov. Stirp. PL Rio Jan. No. 1483 : 

 Echites microphylla, A. DC. (non Stadelm.) in parte, Prodr. viii. p. 459 : Amblyanthera funiformis, 

 Miill. I. c. p. 144 (excl. syn. Velloz), var. microphylla (in parte), tab. 44. fig. 1. In prov. Eio de 

 Janeiro, Cabo frio (Pobl) ; circa Rio de Janeiro (Riedel) : v. v. ad pedem montium Organ, et sicca 

 in herb, meo (no. 4029, infructu). 



My specimen quite agrees with Miiller's drawing, which was probably made from 

 B-iedel's specimen. It is a climbing species, very near the preceding, with very slender, 

 funiform, dichotomous branches, the axils being 1^2 in. apart, and bearing 2 minute 

 stipules ; the leaves are oblong, rounded at the base, suddenly narrowed at the summit 

 into a much longer acute acumen, chartaceous, with subrevolute margins, pale-green 

 above, with reddish immersed fine nerves, paler and yellowish-opake beneath, with a 

 prominent yeUow midrib, the nerves scarcely visible, 1^-2 in. long, 8-10 lines broad, on 

 petioles 6-6 lines long; fructiferous peduncle 2^ in. long, with the cicatrices of few 

 flowers above; elongated pedicel 1 in. long; follicles arcuate, divaricate, striate, sub- 



