Aristolochia.] CXII. ARISTOLOCHIACEiE (baker and WRIGHT). 



135 



1. ARISTOLOCHIA, Linn. ; Benth. etHook. f. Gen. PI. iii. 123. 



Perianth superior ; tube dilated below into an obliquely ovoid or 

 subglobose utricle, upper part cylindrical or funnel-shaped, straight or 

 curved, hairy inside ; limb very variable, sometimes unilateral and 

 entire or emarginate, sometimes with 3 equal or unequal, often 

 caudate, lobes. Stamens G or more united with and around the style 

 forming the gynostemium ; anthers oblong, dehiscing longitudinally ; 

 connective variously produced. Ovary inferior, slender and pedicel- 

 like, perfectly or imperfectly 6 -celled ; style-arms 6, 9, or 12; ovules 

 numerous. Capsule clavate, septicidally G-valved. Seeds numerous, 

 horizontal, triangular or cordate ; endosperm copious, fleshy ; embryo 

 minute. — Herbs or shrubs, erect or climbing. Leaves alternate, entire 

 or lobed. Flowers axillary, solitary, fascicled or cymose, sometimes 

 very large, foetid. 



Species about 200, cosmopolitan, but more numerous in warm climates. 



^Stamens and styles 6. 



Perianth-limb unilateral, narrow. 



Flowers solitary ....,• 



Flowers racemosely cymose ; bract^j large. 



Cvmes 2-3-Howered ..... 



Cymes 5- to mauy-ilowered. 

 Leaves 7 -nerved. 



Seeds 6 lin. lon^f ..... 

 Seeds 4 lin. long ..... 

 Leaves 5-nerved ; seeds 6 lin. long 

 Perianth-limb unilateral, cordate. 



Perianth-limb 1^ in. in diam.; capsule curved 

 Perianth-limb l|-3 in. in diam. ; capsule straight . 

 Perianth-limb 6 in. in diam. ; capsule straight 

 Perianth-limb equilateral, entire, 9 lin. in diam. 

 **Stamens and styles 9-12. 



Perianth-limb unilateral, narrow .... 



Perianth-limb 3-lobed; lobes not produced into long 



tails. 



Leaves more or less lobed and cordate at the 



brtse. 



Perianth -lobes short, much broader than long . 



Perianth-lobes 2 in. long 



Leaves entire, not cordate at the base. 

 Perianth-lobes 1-1^ in. long. 



Leaves oblon<T, shortly cuneate at the base 

 Leaves ovate-oblong, obtuse at the base . 



Perianth- lobes 6 in. long 



Perianth-limb 3-lobed ; lobes long-tailed. 



Leaves produced at the same time as the flowers . 

 Leaves and flowers produced at different times. 

 Tails of perianth-lobes 1-^-2 ft. long . 

 Tails of perianth-lobes l| in. long 

 i'-^^Stamens about 24 j styles about 12 . . . 



1. 



2. 



3. 



4. 

 5. 



6. 



7. 

 8. 

 9. 



A. bracieata, 

 A. Dewevrei, 



A. densivenia, 

 A. jpetersiana, 

 A. albida, 



A. gibhosa, 

 A, elegant. 

 A. fattens, 

 A. rigida. 



10. A. Kirkii. 



A. Mannii. 

 A. triactina. 



A. Zenkeri. 

 A. Staudtii, 

 A. soyauxiana. 



16. A.flagellata. 



17. 

 18. 

 19. 



A. promissa, 

 A. Preussii. 

 A. goldieana. 



