TABULA 2994. 
MICROSTEPHANUS CERNUUS, JN. E. Brown. 
ASCLEPIADACEAE. Tribus CYNANCHEAE. 
M. cernuus, V. £. Brown in Kew Bull., 1895, p. 249, et in Dyer, FI. 
Trop. aa es iv. sect. i. p. 288. Species u nica. 
Fruticulus volubilis vel decumbens. Folia ree ate are 
ae laminae 0°6-4°5 ¢ 
cuneatae. Cymae pedunculatae, umbelliformes, pauciflorae, ad 
nodos ae. glabrae ; pedunculi 2-4 mm. longi; pedicelli 3-5 mm. 
longi, graciles. Calyx 5-partitus, glaber; sepala 1 mm. longa, sens 
acuta, glabra. Corolla parva, alba, glabra ; tubus campanulatus, 2 m 
longus ; lobi 3-4 mm. longi, attenuato-lineares, torti, apice oblique Sate 
acuti vel obtusi. Coronae lobi 5, minuti, cum an nthéris alterni. Co- 
lumna staminum 5-sulcata ; antherae erectae, oblongae, membranaceo- 
appendiculatae, dorso valde convexae, basi sulcatae. Pollinia in 
quoque loculo solitaria, Pb 9 Stylus ultra antheras longe productus, 
apice bifidus. Folliculus solitarius, 5 cm. longus, lanceolatus, rostrato- 
acuminatus, glaber. Semina ovata, marginata, dorso laevigata, ventre 
papillata, branes, comosa.—Astephanus art et A. ovatus, Decne 
in Ann. Sc. Nat. ser. 2, vol. ix. p. 342, n DC. Prodr. vol. vin. 
p- 507; K. Schum. in Engl. PA. Ost. -Afr., , Se 321. A. arenarws, 
Decne in DC. Prodr. vol. vii. a 507. A. recurvatus, Klotzsch in 
Peters, Reise oo Bot., p. 274 ; K. Schum. in Engl. Pfl. Ost.-Afr., 
C, p. 321, et in Engl. & P rantl, Phi lienees. vol. iv. pt. ii. p. 224. 
Periploca ovata, Poir. ex Decne in DC. Prodr. vol. viii. p. 508. 
ast TropicaL Arrica. British East Africa: Mombasa, Hilde- 
brandt, 1166, 1978; Shimoni, south of Mombasa, Whyte. Zanzibar, 
Kirk, Lyne. German East Africa : Usambara; Muoa, Holst, 3037. 
Portuguese East Africa: Mozambique Islan , on coral rocks, 
cot e, Kirk. Madagascar : various localities, 
Commerson, Baron, 6192, Scott Elliot, 3011, Greve. 
A monotypic genus allied to renter differing from it by the 
presence of a small but distinct corona and by the anther-wings 
turning inwards, whereas in Astephanus a most ae ge they 
are directed outwards from the centre of the flower—N. E. B 
~~ 
Cc 
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oo 
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ej 
re) 
, 
lar! 
ra) 
cep) 
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o 
B 
[oF 
I a flower; 2, a flower with the corolla turned inside out, to show the 
corona ; 3, apex of a | lobe of the corolla; 4,stamensand corona; 5, an anther ; 
trans of ananther; 7, pollen-masses ; 8, a fruit; 9,a seed ; 
6, a 
10 : and ll, back oe front views of a seed without its crown of hairs. All 
except 8 and 9 enlarged. 
