Astrochkena.] xc. convolvulace^: (baker and rendle). 



119 



7. 

 8. 



9. 

 10. 



Corolla 1-2 in. long. 

 Leaves ovate-cordate. 



Sepals ovate-lanceolate ; cymes few-flowered . 3. 

 Sepals elliptic ; cymes 1- to 3-flowered . . 4. 

 Sepals oblong-lanceolate ; cymes 1- to 2-flowered 5. 

 Leaves ovate. 



Corolla about 1 in. long . . . . . 6. A . engleriana. 



Corolla more than 1 in. long (generally li-2 in., 

 but see A. Stuhlmanni, var. parvifiora) 

 Base of leaf rounded ..... 



Base of leaf various, but scarcely rounded 

 Leaves oblong to ovate-oblong. 



Flowers solitary ; sepals nearly 6 lin. long 

 Flowers in pairs; sepals 3 lin. long . 

 Leaves broadly elliptic, with cuneate base, repand 



above ........ 11. A. G-rantii. 



Leaves broadest above the middle. 

 Leaves obovate with cuneate base. 



Flowers solitary ...... 



Flowers cymose ...... 



Leaves oblaneeolate. 



Corolla 1 in. long ..... 



Corolla 2 in. long ..... 



Corolla 4 in. long, hypocrateriform .... 



Flowers crowded in heads. 



Leaves longer than broad; the subtending leaf 

 carried up on the peduncle. 

 Leaves spathulate ...... 



Leaves ovate -lanceolate with subcordate base 

 Leaves broadly lanceolate, narrowed to the base 

 Leaves as broad as long; peduncle free from the sub- 

 tending leaf ....... 20. A. delaniereana. 



A. VolJcensii. 

 A. involuta. 

 A Phillipsice. 



A. malvacea. 

 A. Stuhlmanni. 



A.floccosa. 

 A. Kcessneri. 



A. iigandensis. 

 A. Whytei. 



A. annua. 



A. hyoscyamoides. 



A- tubijlora. 



A. melandrioides. 

 A. cephalantha. 

 A. polycephala. 



1. A. lachnosperma, Hallier f. in Engl. Jahrb. xviii. 121. 

 Perennial. Stems erect, 1-1| ft. long, clothed with whitish stellate 

 tomentum. Leaves ovate to broadly ovate-elliptic, obtuse to subacute, 

 entire or slightly repand, broadly rounded or subcuneate at the base, 

 thin, 1|-3| in. long, 1^-3 in. broad, clothed thinly above, more thickly 

 beneath with whitish stellate tomentum ; petiole 1-2 in. long. Flowers 

 solitary or several umbellately arranged ; peduncles about 3 lin. long. 

 Sepals ovate, subacute, 3-4 lin. long, tomentose like the stem. Corolla 

 funnel-shaped, up to 9 lin. long; tube purple; limb light-coloured, 

 glabrous ; midpetaline areas strongly defined. Capsule globose, 

 3-4 lin. in diam., pale brown, glabrous, with 4 brittle valves. Seeds 

 villous. — Capua in Ann. Istit. Bot. Roma, viii. 233. Ipomoea 

 lachnosperma, Choisy in DC. Prodr. ix. 356; Yatke in Linnsea, xliii . 

 510; Schweinf. Beitr. Fl. Aethiop. 95. 



Upper Guinea. Northern Nigeria : Kuka, Gosling ! Bornu, Oudney ! 



Nile Land. Eritrea : Habab, 5000 ft., Kildebrandt, 504 ! Keren, Steudner, 

 953. Assaorta, Terracciano Sf Pappi, 27, 49 ; Amasen, Terracciano Sf Pappi, 120. 

 Kordofan, Kotschy, 260 ! Pfund, 89 ! 508 ! Abyssinia, 4000-5000 ft., ScMmper, 

 198! 550. 



