234 LXXXV. ASCLEPIADE^ (bROWN). 



Corolla always with a distinct campanulate or cylin- 

 dric tube, but the flowers are sometimes very 

 small and the tube short. 

 Coronal-lobes arising from the corolla-tube clearly 

 above the insertion of the stamens below 

 the middle or at the base of the corolla- 

 tube. 

 Coronal-lobes arising at or a little above the 

 middle of the corolla-tube ; erector twining 

 shrubs. (See also Tacazzea rosmarinifolia.) 2. Cetptolepis. 

 Coronal-lobes arising in the sinuses at the mouth 



of the corolla-tube ; erect or twining shrub 3. Stomatostemma^ 

 Coronal-lobes arising at the insertion of the 

 stamens above the middle or at the top of the 

 corolla-tube ; herbs with a tuberous rootstock, 



dwarf; rarely twining 10. Kaphionacme. 



Corolla lobed nearly to the liase; tube reduced to a 

 mere ring; coronal-lobes arising from the 

 corolla at the insertion of the stamens and often 

 adnate to them at the base ; stems long, twining 

 or straight, usually woody. (See also RapJdo- 

 nacme linearis, and R. splendens, which have 

 a very reduced corolla-tube, but are dwarf 

 herbs.) 

 Coronal-lobes short and very broad, with or with- 

 out a dorsal process ; stipules distinct, toothed 



or frill-like 5. Chloeocodox. 



Coronal-lobes long, filiform, subulate, linear or 

 linear-lanceolate, s^imple or divided above into 

 2-3 filiform segments; stipules (except in 

 Tacazzea Jloribunda) none, or represented by 

 a mere line connecting the bases of the petioles. 

 Anthers glabrous ...... 9. Tacazzea. 



Anthers more or less hairy ' . . . .7. Peeiploca. 



Corona double, radiating ; outer lobes obtusely trigonous ; 

 inner lobes obovate-oblong, boat-shaped, obcordate 

 at the apex 6. Omphalogonfs. 



Teibe it. Secamoneae. — Filaments of the stamens connate into a tube, and 

 adnate at the top to the dilated part of the style. Anthers erect or ascending,, 

 with more or less fimbriated appendages. Pollen-contents of each anther-cell 

 consisting of two distinct but exceedingly minute waxy masses, or the two masses 

 more or less combined into one., attached in fours or in pairs to each of the pollen- 

 carriers ; when apparently in pairs the seemingly single pollen-mass is sometimes 

 more or less separable into two. Pollen-carriers minute, subquadrate, rather soft, 

 pale in colour. 



Coronal-lobes laterally flattened or subulate; pollen- 

 masses distinctly 4 to each pollen-carrier . .11. Secamone. 

 Coronal-lobes dorsally flattened ; pollen-masses appa- 

 rently 2 to each pollen-carrier, but each ma«s 

 sometimes separable into two . . . . 12. Toxocaepus. 



Teibe III. Cynanchese. — Stamens with the filament-part when present cou' 

 nate into a tube, sometimes very short and ring-like {filaments free in Xysma- 

 lubium barbigerum); anthers adnate to the dilated part of the style, with 



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