126 xc. convolvulace,£ (baker and rendle). [Astrochlcena. 



minute, linear ; pedicels a little longer than the peduncle, subclavate. 

 Sepals herbaceous-membranous, subpellucicl, bearing short grey tomen- 

 tum on the outside and marked with three rather prominent parallel 

 nerves, the two outer ovate-lanceolate, 6 lin. long, three inner larger, 

 10 lin. long, elliptic-oblong, obtuse or emarginate. Corolla hypocra- 

 terif orm ; tube 4J in. long, 1^ lin. thick; limb white, a purple zone 

 nearly 6 lin. broad below the limb ; midpetaline areas, grey-tomentose 

 outside, plainly defined. Anthers included, linear-sagittate, 3 lin. long. 

 Ovary shortly ovoid, glabrous. Capsule globose, glabrous, concealed in 

 the enlarged sepals, about 6 lin. in cliam., 4-valved, 2-celled. Seeds 4, 

 trigonous, covered all over, but especially at the two lateral angles, with 

 short grey- whitish tomentum. 



Wile land. Galla Country : Irma, near the River Daua, on granite rocks, 

 Biva, 1469. 



Not seen. 



17. A. melandrioid.es, Hallier f. in Engl. Jahrb. xviii. 122. Stem 

 6 ft. long, erect, thick, woody, branched upwards, especially in the 

 younger parts softly cinereo-tomentose. Leaves spathulate, about 3 in. 

 long, 1^ in. broad, entire, acute, mucronate, narrowed to the petiole ; 

 petiole less than 6 lin. long. Flowers in dense few-flowered peduncled 

 heads, the subtending leaf raised on the peduncle ; pedicels very short ; 

 bracts broadly ovate-lanceolate, acuminate, subcarinate, ovate, as long 

 as the sepals. Sepals lanceolate, acute, subcarinate, 6 lin. long, 1^ lin. 

 broad. Corolla funnel-shaped, subentire, up to 1^ in. long, white with 

 a deep purple-violet base. Capsule glabrous, 4-vaived. 



IVlozamfo. Eist. German East Africa : by the Ugalla River, Bohm, 255. 



18. A. cephalantha, Hallier f. in Engl. Jahrb. xviii. 122. Stem 

 erect, clothed, especially towards the top, with long woolly hairs. 

 Leaves shortly petioled, ovate-lanceolate, acute, gradually narrowing 

 towards the subcordate base ; petioles up to 8 lin. long. Flowers in 

 very dense long-peduncled (up to 2\ in.) axillary heads ; leaves 

 inserted on the lower peduncles much below the middle, on the upper 

 higher, even above the middle ; bracts exceeding and enveloping the 

 sepals, broadly ovate-subcorclate, long-acuminate, median nerve very 

 prominent on the outside. Outer sepals broadly ovate, acute, 6 lin. 

 long, up to 5 lin. broad. Corolla 2 in. long, 1-J in. broad, similar in 

 form and colour to that of A . melandrioides. 



Mozamb. 33ist. German East Africa: Muansa, south of the Victoria Nyanza, 

 Stuldmann, 4521. 



19. A. polycephala, Hallier /. in Engl. Jahrb. xviii. 122. 

 Nearly allied to A. cephalantha. Stem erect, densely hairy. Leaves 

 shortly petioled, broadly lanceolate, entire, acute, narrowed to the 

 base, carried up on the peduncles beyond the middle. Flowers in very 

 dense many-flowered involucrate heads on long lateral peduncles, very 

 numerous at the top of the stem ; bracts very broadly ovate, acute, 



