26 ON SOUTH-AMERICAN APOCYNACEZ. 
bifidly branched, each branchlet bearing about 4 red flowers 33 lines long; pedicels 
$ line long; sepals $ line long, mag, ovate, La A hirsutulous; tube of 
corolla 24 lines long, ovate segments ¿ line long, 4 line broad; no apparent disk; 
ovaries semiglobular, pubescent at the apex ; style gees with an oblong clavuncle. 
9. Tuyroma RiEprLi, nob.: Aspidosperma Riedelii, Mill. l. c. p. 56. In prov. S. Paulo, prope 
Ypanéma (Riedel 119 et 2771) : non vidi. 
A shrub 4-6 feet high, with widely spreading branches; leaves lanceolate, roundly 
obtuse, spathulately narrowed towards the petiole, shining and glabrous above, of a dark 
olive colour, with 7-10 pairs of straight diverging nerves, reticulated, paler beneath, 
1-12 in. long, 23-5 lines broad, on petioles 5 lines long; cyme terminal, short, obsoletely 
puberulous, formed of numerous aggregated pedicels 3} lines long; sepals linear, 
obtusely liguliform, reflexed at the apex, 13 line long; flower 2} lines long; tube of 
corolla broadly cylindrical, angular above, cinereo-puberulous, segments obtusely ovate 
with inflexed margins, glabrous outside, half as long as the tube; follicles obliquely 
ovoid, obtuse, suddenly narrowed towards the base, 1 in. long, 7 lines broad; seeds ovate, 
narrowly winged, 8 lines long, with an embryo enclosed in the scutcheon. A species 
said to approach 7. Sellowi and T. parvifolia. 
STREMPELIOPSIS. 
A genus established in 1876 by Messrs. Bentham and Hooker, its characters being 
little known : only one species is noticed. 
1. STREMPELIOPSIS CUBENSIS, Benth. & Hook. Gen. ii. 702: Rauwolfia strempelioides, Griseb. Cat. Pl. 
Cub. 170: in herb. Hook. (non vidi). 
All that is said regarding this is, that it is an erect, branching, glabrous shrub, with 
2 minute stipules at the axils, opposite penninerved leaves, terminal cymes with 
numerous small flowers; sepals 5, ovate, biauriculate at the base, eglandulous; corolla 
salvershaped; tube cylindrical, without buccal scales, pilose within; segments short, 
obtuse, sinistrorsely convoluted, suberect ; stamens included in the tube, on very short 
filaments, anthers free, acutely lanceolate, emarginated at the base; disk none; ovaries 2; 
style short, with an ovoidly globose clavuncle terminated by 2 short obtuse stigmata; 
ovules many in each carpel, biserial; follicles 2, erect or diverging, linear, subterete; 
seeds in 2 series, elongated, very compressed, with a very narrow acute wing at each 
extremity, with a central hilum to which they are affixed by a long filiform funicle. 
PLUMERIA. 
This handsome genus requires little notice, as its species have been fully described, and 
many of them well illustrated. They are all of Peruvian, Mexican, or Brazilian origin, 30 of 
them being enumerated by DeCandolle, and 15 others by Müller. They are mostly lofty 
trees or tall erect shrubs, much branched, the trunks affording a solid wood, the branch- 
