Tas. 8389, 
LANDOLPHIA PEtTeErRSIANA. 
— _ 
East Africa. 
APOCYNACEAE. ‘Tribe PLUMERIOIDEAE. 
Lanpoupuia, Beauv.; Benth. et Hook. f. Gen. Plant. vol. ii. p. 692. 
Landolphia Petersiana, Dyer in Kew Report, 1880, p. 42; inter species 
sectionis Ancyclobotrys foliorum nervis lateralibus tantum 6-8 in utroque 
latcre atque corollae lobis tubum excedentibus insignis. 
Frutex scandens ope inflorescentiarum sensitivarum; rami novelli rufo- 
pubescentes. vel tomentosi. olia elliptica vel oblongo-elliptica, subacuta 
vel saepius obtusa, 8-11 cm. longa, 3-5 em. lata, coriacea, primo utrinque 
laxe pubescentia, mox glabrata, nervis lateralibus utrinque 6-8 (raro 10), 
venarum reticulatione tenui; p-tiolus cirea 6 mm. longus. Panicula 
longitudine varia, pedunculata, floribus numerosis sessilibus in apicibus 
ramorum aggregatis; rami patuli vel recurvi, tenuiter rufo-pubescentes 
vel glabrescentes; peduneuli 2°5-10 em. longi, graciles; bracteae ovato- 
lanceolatae vel ovato-oblongae, acutae, rufo-pubescentes. Calyx 2 mm. 
longus ; sepala ovato-oblonga, obtusa, rufo-pubescentes. Corolla alba, 
fragrans, 16-26 mm. longa in alabastro; tubus gracilis cylindricus, 
6-9 mm. longus; lobi oblique oblongi vel lineari-oblongi, acuti vel obtusi, 
12-16 mm. longi, crispo-ciliati. Antherae ovato-oblongae, acutae, vix 2 mm. 
longae. Ovariwm globosum, minutissime rufo-tomentosum. Stylus cum 
stigmate 2 mm. longus. Fructus globosus, ad 6 em. diametro, tenuiter 
velutinus, pericarpio coriaceo; semina 8-18 mm. longa.—Planch. Prodr. 
Apocyn. p. 819; Dewévre, Caoutch. Afr. Monogr. Landolph. p. 27, partim; 
Jumelle, Pl. 4 Caoutch. et & Gutta, p. 57, partim; Warburg, Kautshukpfl. 
p- 118, partim; Thiselton-Dyer in Hook. Ic. Plant. t. 2756; Stapf in 
Thiselton-Dyer, Fl. Trop. Afr. vol. iv. p. 47. L. scandens, vars. Petersiana, 
rotundifolia et Stuhlmanniana, Hallier f. Kautschuklianen in Jahrb. Hamb. 
Wissensch. Anstalt, vol. xvii. (1890), 3 Beih. pp. 82, 83; Busse in Engl. Bot, 
Jahrb. vol. xxxii. (1902), pp. 169-172. <Ancyclobotrys Petersiana, Pierre in 
Bull. Soc. Linn. Paris, 1898, p. 91. A. rotundifolia, Pierre, 1. ¢.-p. 92. 
Willughbeia Petersiana et W. senensis, Klotzsch in Peters, Reise Mossamb. 
Bot. vol. i. pp. 281, 282.—O. Starr. 
The Landolphia here figured is widely spread throughout 
Kast Africa, where it extends from the Bahr-el-Ghazal and 
Mombasa through German East Africa to. Nyasaland and 
Mozambique. As the number of names that have been 
applied to it indicates, the species is evidently a very variable 
one, and what have been taken for distinguishable forms 
or varieties may represent little more than individual or 
local states. The species, generally known in East Africa 
as the “ Mpira,” was first added to the Kew collection in 
Avaust, 1911. 
