28 
Forest Flora of Portuguese East Africa. 
longitudinally. Style single, central on the disc, the 4-6 ovary-lobes arranged around its base, each i-celled, i-ovuled, and after fertilization appearing as 4-6 
separate black drupes resting apart upon the red enlarged torus, and the calyx often turns red also. Seeds albuminous. Leaves alternate, simple, stipulate; stipules 
deciduous. Owing to variable characters the species are difficult to separate. A large tree from Magenja da Costa known as Nakrokwe , seen only with immature 
flowers, may belong here or to Uvaria. 
O. arborea, Burch. Van. names— 1, Redwood and Cape Plane; 4, Mzenzan and Shukwa ; 13, Umtensema, Umhlezane and Umtelele; 14, Roodehout; 15, 
Shi mush wan. A small tree 412 metres high, usually having a small crown and a clean unbranched stem 15-30 c.m. diameter with a thin white or brownish smooth 
bark, from which scales flake off. Leaves oblong, entire or few-toothed, coriaceous, 5-7 c.m. long, 1-2 c.m. wide, usually obtuse, very shortly petiolate • flowers 
produced abundantly, singly or in racemules or clusters, often from abortive branchlets. Anthers dehiscing by terminal pores. Frequent in the extra-tropical 
districts ; yields a dense, close-grained, light red, durable timber in Cape Colony and Natal, where it is used for various purposes. Cone-like galls often occur instead 
of buds. Leaves generally more serrate than in Natal. 
Pl.ATE IV. B. 1, Fruiting branch ; 2, Flower, x 2 ; 3, Stamens and pistil (magnified) ; 4, Fruit ; 5, Gall. 
O. mossambicensis, klotzsch. Vcrn. name— 10, Na-noa. A shrub, having obovate, finely serrulate, shortly petiolate leaves 12-17 c.m. long, 5-8 c.m. wide and the 
flowers in lateral pedunculate corymbose racemes. Anthers opening by pores. Throughout the Province. 
O. atropurpurea, I). C. var Natilitia. Vern. name— 15, Mtuse. A tree with lanceolate, undulate, sharply serrulate leaves 5-7 c.m. long, 1-2 cm. wide Flowers in 
short lateral racemes, anthers opening by pores. Delagoa Bay, M’Chopes and Inharreme. 
O. Kirkn, Oliv. Vern. names- 10, Ka-mulugaim ; r 1, Nequaka. A large glabrous tree in the forests of Magenja da Costa. Bark very rough. Leaves obovate-elliptical 
o oblanceolate-oblong, 5-7 c.m. long, 1-2 c.m. wide, sometimes cordate at the base, finely serrulate, prominently and irregularly veined above, pale below Restin- 
buds abundant. Flowers not seen ; said to be in terminal or lateral pedunculate, umbellate corymbs, and with anthers dehiscing by short slits. Recorded also 
O. macrocalyx, Oliv. A small shrub from Zambesia and northward having serrulate, oblanceolate-oval, sub-acute leaves 7-10 c.m. long, 2-3 cm. wide- short axillarv 
3-7 flowered racemes ; flowers large ; pedicels 2 5 c.m. long, fruit sepals 2-2-5 c.m. long. Anthers dehiscing by pore-like slits. ’ 7 
FAMILY XIX.— BURSERACEiE. 
Flowers hermaphrodite or polygamo-dioecious ; calyx 3-4-5 lobed or partite, petals 3-5 J stamens 6-8-10, inserted on the margin or on the outside of a fleshy disc more 
or less attached to the calyx tube ; ovary free, 2-5 celled ; ovules geminate ; fruit drupaceous or capsular ; seeds exalbuminous. Trees and shrubs with alternate exstipulate 
3-fol.ate or impar.pinnate leaves and small axillary paniculate, racemose of fascicled inflorescence. To this Family belong several of the resin-bearing trees of Somaliland ^nd I 
nT ,1 Pr °^ ble 11 SC p ” argC de , C ‘ dUO “ S f pmnate '!* aVed trees havin ? more or less flak y bark » ^und by me in Zambesia without flowers or fruit and almost without leaves 
may also belong here. Canar.um, a West African edible fruit, is mentioned in - Gaza” as found there, but I have no other information that it is so. 
56. COMMIPHORA. Flowers polygamous. Calyx companulate or deeply 4-toothed, persistent. Disc almost absent or adnate to the calyx and more or less cup-shaned 
‘‘Ovalv He 4 Per ‘ gyn ° US va Vate pCtals and 8 stamens 0n ,ts mar S ,n - Filaments slender, free, alternate stamens slightly shorter. Pistil rudimentary in mos^ flowers’ 
subeloho 2 'll narr0 !f 1 1 T f T th,Ck StyIC; Stlgma ° btUSe ’ Undivided ’ or mar S ins lobu!ate - Ovules geminate, collateral, pendulous.” Vupe ovoid or 
leathery or somewhat succulent mesocarp dehiscent in 2 valves, exposing the black bony putamen, the lower half of which is girt 
S ieda tT i - SCedS exalbum,nous Cotyledons plicate. Leaves 1-3 foliate or pinnate, deciduous, usually the first leaves on new shoots are 
e, the number of leaflets increasing up the stem. 5-merous flowers are occasionally intermixed in the same inflorescence among the normal 4-merous flowers 
1m >er very light, white ; bark usually separable in horizontal flakes, leaving a shining green surface. A difficult group to limit in repnrd m chpp'p j 
confuse the species considerably in the use of the common names. In ^absence of literature on the SSE £ £2" 
wh^ch are new to me, and consequently refer to them by numbers. Possibly the “ Shumbunkanye ” referred to under Trichilia Capitata belongs here (6) O H 
or Diva. All the species strike by stump-cuttings and are planted for hedges, shelter, &c. P 8 here-(6) O-deba 
C. africana = Balsamodendron africanum Am. in Ann. Nat. Hist. III. (1839) 87. Flowers in axillary fascicles, mostly on short leafy spine-branches I t n- ( 
a ets 2-3 c.m. long, ,-2 c.m. wide, nearly sessile, obovate or oblanceolate, cuneate at the base, blunt or acute, crenate or nearly entire. Fruit globose orlbovoid 
