120 Lxxxiv. APOCYXACE^ (stapf). [Plumeria. 



1. P. rubra, Linn. Sp. PL 201). A shrub or small tree. Leaves 

 crowded near the ends of the branches, oblong or elliptic-oblong, acute 

 at both ends, or the tips subacuminate, 6-12 in. long, 2-4 in. broad, 

 herbaceous, quite glabrous ; secondary nerves 25— iO on each side, 

 horizontal in the lower, slightly oblique in the upper part ; petiole 

 puberulous, 1-2 in. long. Corymbs many-flowered, umbelliform ; 

 peduncle 2-6 in. long, stout, puberulous ; pedicels up to J in. long. 

 Oalyx scarcely 1 lin. long. Corolla pink ; tube |-| in. long ; lobes obo- 

 vate-oblong, 1-1 J in. long. Follicles 8 in. long, \l in. wide. — Bot. Mag. 

 t. 279 ; Lam. Encycl. ii. :^)()8, t. ]7o, fig. 1 ; DC. IProd. viii. 300 ; Bot. 

 Reg. t. 780; Reichb. Fl. Exot. t. 175; Hiern in Cat. Afr. PL Welw. 

 i. 667. Plumiera ruhxi, K. Schum. in Engl. & Prantl, Pflanzenfam. 

 iv. ii. 136. P. rosea, (error for P. rubra), K. Schum. in Engl. Pfl. Ost- 

 Afr. C. 315. 



]Lower Guinea* Angola : Loanda, cultivated, Welwitsch, 5985. 



X^ozamb' I>ist. Zan/ib.ir, SUihlmann. 



Probahly a native of Central America; frequently cultivated in the trop cs. 



Imjyerfectly knoion species. 



2. P. africana, Mill. Gard. Diet. ed. 8, No. 5. Leaves linear- 

 lanceolate, t)-10 in. long, 2 in. broad, rather succulent^ acute, slightly 

 rounded at the base. Flowers yellow. 



Upper Guinea. Senegal, Adanson. 



This Wiis described from specimens raised from seeds brought home by Adanson. 

 It has not been observed again. 



16. ALSTONIA, R. Br. ; Benth. et Hook. f. Gen. PI. ii. 705. 



Calyx small, eglandular within; sepals 5, almost free or distinctly 

 united at the base, imbricate, more or less ovate. Corolla salver- 

 shaped ; tube cylindric, slightly widened below the mouth (or near the 

 middle in short-flowered species), more or less callous at the mouth ; 

 lobes rounded to lanceolate, contorted, overlapping either way. Stamens 

 in the widened part of the corolla- tube, included ; filaments filifoim, 

 short. Anthers free from the stigma, ovate to ovate-oblong, subacute, 

 2-lobed at the base ; anther-cells polliniferous and dehiscing to the 

 base. Disc 0, or obscurely annular, or (Sect. Blaheropus) tubular, 

 adnate to the base of the ovary and produced into 2 lobes, alternating 

 with the carpels. Carpels 2, free or coherent in flower, frequently 

 slightly immersed in the torus ; style filiform, often very short ; stigma 

 oblong, 2-lobed or 2-lid, with a ring or reflexed frill at the base ; 

 ovules numerous, pluriseriate. Meri carps 2, follicular, usually long, 

 cylindiic, slender. Seeds oblong, compressed, attached by the centre, 

 with long hairs all round the edges, but chiefly at both ends, or 

 shortly ciliate on the sides, glabrous or pubescent on the faces ; testa 

 very thin ; endosperm fleshy. Embryo in the longitudinal axis of the 

 seed ; cotyledons oblong, flat, foliaceous ; radicle about as long as the 



