Leptadenia.} LXXXV. ASCLEPIADEA (BROWN). 438 
broad, narrowly lancevlate, plano-convex, glabrous.—Decne. in DC. 
Prod. viii. 629 ; Hook. f. Fl, Brit. Ind. iv. 64. Z. gracilis, Decne., L. 
pyrotechnica, Decne., and L. jacquemontiana, Decne. in Ann. Sc. Nat. 2 
sér. ix, 269-270, and in DC. Prod. viii. 629; K.Schum. in Ann. Istit. 
Bot. Roma, vii. 41. L. jacquemontiana, Hook. Ic, Pl. ix. t. 838. L. 
gracilis and L. pyrotechnica, K.Schum. in Engl. and Prantl, Pflanzenfam. 
lv. ii, 269, fig. 79A and D, excl. B-C, and 270, Cynanchum pyro- 
technicum, Forsk. Fl. Aigypt.-Arab. 53; Delile, Descrip. de Egypt. 
Hist. Nat. ii. 54, t. 20, fig. 8. Sarcostemma pyrotechnicum, Roem, and 
Schult. Syst. vi. 116. Microloma pyrotechnicum, Spreng. Syst. i. 855. 
Upper Guinea. Senegal, Roger! Heudelot, 482! 
Worth Central. Kanem: Tiboo country, Vogel ! 
Nile Land. Nubia, Bromfield! Bent! Speke & Grant, 775! between 
Snakin and Berber, Schweinfurth 460! sér. iii. 35! Kordofan: Wadi Hawai, Pfund, 
397! Sherkela, Muriel, L,125! Somaliland: from Res (Ras ?) es Sogair to Berbera, 
Robeechi-Bricchetti, 322 (ex Schumann). 
Extends through Arabia into the drier parts of India. 
4. L.? visciformis, Vatke in Oest. Bot. Zeitschr. 1876, 146. A 
leafless much branched shrub, 3 ft. high ; branches and branchlets short, 
crowded, subvirgate, compressed, jointed. Leaves reduced to sheath-like 
scales surrounding the nodes. Flowers unknown. Follicles mentioned, 
but not described. 
Wile Land. British Somaliland: Ahl Mountains, near Maid, Hildebrandt, 
1432. 
1 have not seen this plant. Vatke states that it may be a species of Periploca, 
which recalls to mind by its habit some of the Asiatic species of Viscum. 
43. ORTHANTHERA, Wight, Contrib. Bot. Ind. 48. 
Calyx 5-partite. Corolla-tube elongated, more or less inflated 
at the base, often with the inflation extending between the 
sepals into 5 blunt angles; lobes 5, erect or spreading, valvate in 
bud. Corona arising at or near the base of the staminal-column, 
of 5 erect g-shaped lobes, adnate to the column between the 
anther-wings, reaching nearly or quite to the base of the anther- 
cells, with broad free outstanding margins diverging downwards ; 
coronal-lobes at the mouth of the corolla-tube none or reduced to very 
minute and inconspicuous papille or folds. Staminal-column arising 
from the bottom of the corolla-tube and enclosed in the inflated part ; 
anthers erect, linear in the fertile part, apiculate; anther-wings below 
the pollen-cells decurrent on the filament part, subparallel or diverging 
downwards. Pollen-masses erect, with a pellucid margin at the apex, 
solitary in each anther-cell, attached in pairs by slender caudicles to the 
pollen-carriers. Style equalling or shorter than the anthers which sur- 
round the slender conical or needle-like terminal part. Follicles terete 
and acute or fusiform and acuminate, smooth. Seeds crowned with 
a tuft of hairs—Erect, virgate shrubs, leafless or with linear leaves, 
VOL. IV. 2F¥ 
