COL. GRANT—-BOTANY OF THE SPEKE AND GRANT EXPEDITION. 73 
and mango groves on the heights of the island. When we visited the place in Sept. 1860, the harvest of 
cloves was so abundant that the crop was not all gathered. Native name “ m'grafoo."—J. A. G.] 
MELASTOMACE X. ° 
1. Dissoris PRINCEPS, Triana, in Linn. Trans. xxviii. 57.--0806с/а princeps, Bonpl. 
Rhex. tab. 46. Dissotis eximia, Hook. f. in Oliv. Fl. Trop. Afr. ii. 454. — Osbeckia eximia, 
Sond. in Linnæa, xxiii. (1850), 48; App. Speke’s Journ. 635. 
Hab. Ukidi, extends southward to Natal; flower, Nov. 1862, Col. Grant ! 
[Four feet high, hardy plant, with purple flowers, near water, Ukidi Forest, November.—J. А. G.J 
2. DissoTIS CANESCENS, Hook. f. in Oliv. Fl. Trop. Afr. ii. 453.— Osbeckia canescens, 
E. Mey.; Graham, in Bot. Mag. tab. 3790.  Dissotis incana, Triana, in Linn. Trans. 
xxviii. 58. Osbeckia incana, E. Mey. ex Hochst. Walp. Rep. v. 708.  Argyrella incana, 
Naud. in Ann. Sc. Nat. sér. 3. xiii. 800; App. Speke's Journ. 685. Osbeckia Umlaasiana, 
Hochst., Sond. in Fl. Capensis, ii. 518. 
Hab. Karagué, flower, Feb. 1862, and Ukidi forest, flower and fruit, Nov. 1862, 
Col. Grant ! Also in South Africa. 
[A richly flowering plant, 3 feet high. The flowers, of a rosy pink colour, are thick upon the bunch, and 
are so delicate that they soon fall off. Тһе leaves have their three back veins very large and parallel. 
Grows by water at Karagué.—J. A. G.] 
3. Dissotis PROSTRATA, Hook. f. in Oliv. Fl. Trop. Afr. ii. 452; Triana, in Linn. Trans. 
xxviii. 58. Suffrutescens, prostrata, adscendens vel subscandens, ramosa ; caule flexuoso 
ramulisque plus minus patentim hirsutis; foliis petiolatis, ovatis v. ellipticis, acutis 
v. obtusis, 3-5-nerviis, integerrimis v. obsolete serrulatis, utrinque subappresse setuloso- 
hirsutis, subtus pallidis ; floribus solitariis ternisve, terminalibus ; calyce setulis stellato- 
fasciculatis obsito, lobis lineari-subulatis, tubo paulo brevioribus; petalis late obovatis ; 
antheris subeonformibus, іп 5 majoribus connectivo infra loculos longiuseule producto, 
appendice 2-loba.—JMelastoma prostrata, Schum. et Thonn. Pl. Guin. 220. Osbeckia 
zanzibarensis, Naud. in Ann. Sc. Nat. sér. 3. xiv. 55; App. Speke's Journ. 635. Lepi- 
danthemum triplinervium, Klotzsch, in Peters, Mossamb. Bot. 64. 
Folia 1-2 poll. longa, 4-1 poll. lata; petiolus 4-4 poll. longus. Pedunculus bracteatus, JL poll. 
longus ; bracteæ ovatæ, circa 1 lin. longæ. Calyx tubo ellipsoideo v. deinde subgloboso, + poll. longo, lobis 
persistentibus, setulis stellatim connatis, 1-1 poll longis. Stamina longiora, antherarum connectivo 
producto loculo fere æquilongo, appendice antica, 1 lin. longa. 
Hab. Zanzibar, Col. Grant ! Found also in Zambesi-land and Nigritania. 
[Collected at Zanzibar island in August, when it was in flower. Rather common.—J. A. б.) 
Plate XXXIX. fig. 1. Detached flower, with a single petal and a long and short 
: stamen remaining ; ; fig. 2. Long stamen; fig. 3. Short stamen. 
4. Drssors PETIOLATA, Hook. fil. in Oliv. Fl. Trop. Afr. ii. 448. Erecta; caule glabro 
у. SR adpressiuseulis minutis v. obsoletis in lineis verticaliter dispositis scabro, nodis 
setas 3—4erectas gerentibus; foliis longe petiolatis, ovato- vel oblongo-ellipticis, acutiusculis, 
integerrimis, 5-nerviis, utrinque pilis arcte appressis (et fere ad apicem айпай), strigosis, 
