Xalanchoe] xlvii. crassulace.e. 329 



upper leaves lanceolate from an amplexicaul base, coarsely dentate 

 from the middle to the apex ; calyx deeply 4-clef t, densely glandular, 

 with erect long-acuminate lobes ; corolla pale-yellow ; corolla-tube 

 acutely quadrangular ; lobes of the limb elliptic-ovate, cucullate- 

 apiculate at the apex ; stamens 8 of which 4 are inserted lower than 

 the others, included ; hypogynous scales 4, well developed, linear, 

 obtuse ; ovaries 4, erect, free, unilocular. In elevated stony parts of 

 Morro de Lopollo (Monino) ; flower-bud 6 April, fl. April and May 1860. 

 No. 2485. > 



9. K. scapigera Welw. ex Britten, I.e., p. 397. 



Mossamedes. — A suffruticose, fleshy, quite glabrous herb ; root 

 thick, oblique, 1-3-headed ; stem cylindrical, an inch high, transversely 

 rugose with the scars of fallen leaves ; leaves obovate obtuse sub- 

 petiolate or occasionally subsessile and suborbicular, very thick, sub- 

 rosulate at the apex of the stem, reddish or of a yellow-copper colour ; 

 peduncles scapiform, arising from the rosette of leaves, solitary or two 

 together, 5 to 9 in. long, straight, cylindrical, occasionally furnished 

 with 2 opposite deciduous bracts, bearing at the apex 1 to 3 little 

 cymes ; pedicels T \ to J in. long, rigid, furnished with thick lanceolate 

 almost triquetrous bracteoles; flowers deep-yellow, rather fleshy, 

 brittle ; calyx-segments very short, oval-deltoid, rather obtuse, gibbous 

 on the back, several times shorter than the quadrangular corolla-tube ; 

 stamens 8 ; hypogynous glands 4, filiform-linear ; ovaries gradually 

 acuminate, at length dehiscing on the inner side, many-ovuled. On 

 the summit of the mountains of Serra de Montes Negros, seen in only 

 one stony spot ; a few specimens in fr. and one in fl. 10 August 1859. 

 No. 2483. 



5. COTYLEDON Tournef., L. ; Benth. & Hook. f. Gen. PI. i. p. 659. 

 1: C. orbiculata L. Sp. PI. edit. 1, p. 429 (1753); Britten in 

 Oliv. PI. Trop. Afr. ii. p. 398. 



Mossamedes. — A beautiful, pruinose-glaucous, fleshy, brittle shrub, 

 1 to 2 ft. high ; stem straight or ascending, woody, £ to § in. thick, 

 transversely rugose with the scars of fallen leaves ; branches dichoto- 

 mous, csespitose, spreading, undulating, pale-brown, shortened, densely 

 leafy ; leaves in 4 rows decussate, obovate-spathulate, fleshy, very thick, 

 subsessile, glaucous, spread all over with easily separable quite white 

 meal, turning red at the obtuse apex ; flowers red, terminal, cymose ; 

 peduncle cylindrical, 4 to 7 in. long, scape-like, with opposite bracts at 

 the base and above the middle, as well as the pedicels and calyx white- 

 mealy. Abundant, on the sides of lofty almost vertical rocks composed 

 of sandy mica-schist, along the banks of the river Maiombo, about 

 15 miles from the coast, chiefly between Pao and Bisapa, rather rare 

 between Pao and Pedra Rei ; fl. and young fr. 7 June 1860. Altitude 

 100 to 300 ft. No. 2489. 



XLVIII. DROSERACE^. 



The Droseracese of Angola are essentially highland plants. 

 Even in the hilly region, where a moist atmosphere and spongy 

 ground are certainly not rare, Welwitsch did not find a single 

 species, and it was only about 15° S. lat. at an elevation of 5000 

 to 6000 ft. that several species were met with. Drosera indica L. 

 descends lowest, namely to 3200 ft., but the geographical distri- 



