Pachypodium. | LXXXIV, APOCYNACE (STAPF). 231 
Corolla sweet-scented ; tube purple, cylindric, widened at the middle, 
1}-1# in. long, hairy within below the stamens ; limb 24-3 in. in diam., 
white inside, pink on the back ; lobes broad, obliquely ovate, the inner 
margin crisp. Anthers 44-5 lin. long. Disc cupular, slightly 5-lobed. 
Follicles spreading at a right angle when mature, spindle-shaped, com- 
pressed, 3—5 in. long, glabrous, Seeds obovoid, compressed, 34 lin. long, 
coma 2—3 times as long.—Hiern in Cat Afr. Pl. Welw. i. 676. 
Lower Guinea. Angola: Bumbo; in dry rocky thickets between Quitibe de 
Baixo and Quitibe de Cima, common, 1500 ft., Welwitsch, 1510! between Umpupe 
and Palmfontein, 2900 ft., Baum, 21! 
OrpeER LXXXV. ASCLEPIADEZR. (By N. E. Brown.) 
Flowers regular, hermaphrodite. Calyx of 5 free sepals or rarely 
5-lobed ; segments imbricate, usually with minute processes at their 
base within. Corolla hypogynous, gamopetalous, regular, 5-lobed, re- 
flexed, rotate, campanulate, infundibuliform, hypocrateriform, urceo- 
late, or tubular; lobes imbricate, contorted, or valvate in sstivation, 
often recurved or connate at their tips; tube within or at its mouth 
Sometimes furnished with variously shaped lobules, flaps, keels, or pro- 
cesses, which are distinct or connate and usually alternate with the 
corolla-lobes, forming part or the whole of the corona. Stamens 5, 
Inserted at or near the bottom or rarely at the middle or mouth of the 
corolla-tube, alternating with the corolla-lobes; filaments sometimes 
free, but’ more usually connate into a tube around. the ovary (forming, 
with the anthers and their terminal appendages, the stuminal column), 
with the apex of the tube often united to the dilated part of the style; 
anthers not connate with each other, free or united to the dilated part 
of the style, 2-celled, dehiscing by apical, longitudinal, or transverse 
slits; margins of the anthers or their basal prolongations below the 
pollen-cells more or less horny and wing-like (the anther-wings), usually 
projecting outwards, the adjacent wings of each pair of anthers nearly 
meeting and forming between them very narrow fissures leading to the 
Stigmatic cavities; connectives of the anthers often produced into 
membranous (or rarely fleshy or inflated) terminal appendages, or 
apiculate or unappendaged ; appendages sometimes connate. Staminal- 
column usually furnished with variously shaped free or more or less 
connate appendages, which often have keels or processes on their inner 
face and are disposed in 1-3 series, forming the corona or part of it. 
Pollen-contents of each anther-cell granular or united into one or two 
waxy masses formed of an indefinite number of pollen-grains, and 
attached in pairs or in fours, sometimes directly, but more usually by 
means of arm-like processes (the cawdicles), to each of the 5 small or 
minute, horny or rarely soft, turgid or bilobed bodies (the pollen- 
carriers), which rest, one on each of the 5 angles of the dilated part of 
the style, the whole forming the pollinia, the masses attached to each 
pollen-carrier always being derived from the cells of two different but 
