1026 cxvii. MOBACE^. [Borstenia 



tuberous, succulent, watery, edible, delightfully refreshing ; stem 

 lactescent, scarcely branched or furnished with abbreviated leafy 

 branchlets, fleshy, cylindrical, somewhat reddish ; leaves lactescent, 

 elliptic-lanceolate, somewhat fleshy, veined, the veins impressed on 

 the upper face, raised on the lower ; [flowers clustered on the hemi- 

 spherical receptacle. In sandy thickets among low herbs near Lopollo, 

 sparingly and sporadic ; fl. and few fr. 25 Dec. 1859. No. 1566. 



In some respects allied to D. indica Wall. List, n. 4639 (1831), but 

 the leaves are subsessile, and it can be easily distinguished by the 

 tuberous root. D. indica is reported to have been collected by Mr. 

 Last at the Usagara district of Central Africa : see Mitten in Journ. 

 Linn. Soc. xxii. p. 299 (188G) ; but this distribution of the species is 

 not recognised in Hook. f. Fl. Brit. Ind. v. p. 494 (1888). 



11. CHLOROPHORA Gaudich. Bot. Voy. Freyc. p. 509 (182C) ; 

 Benth. & Hook. f. Gen. PI. iii. p. 363. 



1. C. excelsa Benth. & Hook, f., I.e. ; Ficalho, PI. Uteis, p. 268 

 (1884); Engl, in Notizbl. Bot. Berlin ii. p. 52 (1898), Mon. 

 Morac. African, p. 3 (1898). 



Morus sp. Welw. Synopse Explic. p, 8. n. 6. & p. 9. n. 14 (1862). 

 M. excelsa Welw. in Trans. Linn. Soc. xxvii. p. 69. t. 23 (1869). 

 Madura ? excelsa Bureavi in DC. Prodr. xvii. p. 231 (1873). 



GoLUNGO Alto. — A very lofty, immense, copiously lactescent tree, 

 100 to 135 ft. high ; trunk 4 to 7i ft. in diameter at the base, losing 

 its branches more or less up to two-thirds of its height ; head ample, 

 hemispherical ; timber whitish, soon becoming pale bay in colour, 

 durable, very highly valued, easy to work, used for house-building, 

 gates, doors, tables, etc. ; branches patent ; branchlets nodose, some- 

 what tortuous, quasi- scarred with short whitish lines ; flowering shoots 

 green ; leaves deciduous, the fresh ones appearing with the flowers in 

 October and November, falling in the following June, July and August, 

 somewhat glossy and marked with deep green yellowish veins above, 

 yellow-greenish and pervaded with more deeply yellow veins beneath, 

 densely pubescent almost tomentose in the young state, the adult ones 

 glabrous, very delicately and beautifully reticulate, toughly mem- 

 branous almost coriaceous, those of the young trees much larger than 

 those of old ones ; petioles slightly channelled ; flowers dioecious, 

 appearing only on old trees ; fruit when nearly ripe from greenish to 

 yellowish, but little juicy. In primitive forests, on the lower slopes 

 of the Queta mountains near Canguerasange and around Bango, on a 

 mica-schist formation, with foliage, Oct. 1854 ; Bango road, July 1855; 

 Queta mountains, beginning of Oct. 1855 ; near Sange, N-delle, Mata 

 de Quibange, etc., plentiful, fl. Nov. 1855, fr. Dec. 1855 to Feb. ; on 

 the slopes of Alto Queta, plentiful, male fl. end of Sept. 1856 ; Mata 

 de Quilango near Sange, fr. Dec. 1855. Native name " Camba- 

 Camba '' or " Mucamba-Camba " ; colonial name " Amoreira " or 

 "Moreira." It is milky in all parts after the fashion of the Figs. 

 No. 1559, and Coll. Carp. 897. 



This is the tree referred to by Welwitsch, Apontam. p. 546 sub 

 n. 68 (1859), as a new genus allied to Morus. The moss n. 132, 

 Schlotht'imia rugifoUa Brid. grew on the trunk of "Mucamba-Camba " 

 at Sange in Dec. 1854. 



2. C. tenuifolia Engl. Bot. Jahrb. xx., 1, p. 139 (16 Nov. 1894), 

 and Mon. Morac. African, p. 4 (1898). 



