326 xxxvi. burserace* (o liver). [Balsamodendron. 



describes as " simple." The numerous lateral spinose ramuli spread nearly at right angles. 

 The pedicellate flowers arc fasciculate subsessile or on short 2-3-flowered peduncles Calyx 

 deeply campanulate. Drupes obliquely ellipsoidal, apiculate. I think they also belong to 

 li. qfricanum. They are from Koobie to N. Shaw Valley, Baines ! Lake Ngaini, C/iapman! 

 and Batoka Country, Dr. Kirk ! 



2. B. Opobalsamum, Kth. in Ann. Sc. Nat. ii. (1824) 348. Tree or 

 shrub, wholly glabrous or the extremities and leaves occasionally finely pu- 

 bescent, unarmed. Leaves scattered or in fascicles of 2, 3, or more, from 

 short or suppressed lateral branchlets often under 1 in. in length, 3-5-folio- 

 late, very rarely 1-foliolate with a distinct common petiole ; leaflets obovatc 

 or oblanceolate, obtuse or broadly acute, entire or obscurely undulate. 

 Calyx campanulate, shortly 4-toothed. Fruit ovoid or ellipsoidal, smooth, 

 glabrous, apiculate. — B. gileadense, Kth.; Berg in 13ot. Zeit. 1862, 163. 

 B. Ehrenbergianum, Berg, 1. c. 



Nile Land. Nubia, Schweinfurth ! 



Arabia and perhaps also in Beloochistan. 



I have had but insufficient material for examination. 



3. B. pedunculatum, Kolschg et Veyr. in PI. Tinn.W. t. 5. B. Small 

 tree with erect terete striate branches, pubescent the first year, at length gla- 

 brous. Leaves more or less fascicled at the extremities, 1^-4 in. long, 5- 

 1 1-foliolate ; leaflets sessile, oval or oblong, acute, serrate-dentate, pubescent 

 or shortly pilose on both sides, £-1 in. long. Flowers clustered, subsessile 

 or shortly pedicellate, in pedunculate, axillary, few-flowered cymes. Calyx 

 urceolate-campanulate, 4-toothed, teeth triangular. Petals oblong-spathu- 

 late, pubescent externally. Stamens alternately shorter ; anthers muticous 

 or obscurely mucronulate." Fruit not described. 



Nile Land. On the Bahr Ghasal, a tributary of the Upper Nile, Heuglin; Sennar, 

 Cierikowski ; Kordofan, Kotschy. 

 I have not seen a specimen. 



4. B. Playfairii, Hook. f. in Herb. Keic. Glabrous, spinose; spines 

 slender, rigid, very acute, \-\ in. long or terminating lateral leafy 

 ramuli. Leaves fasciculate, 3-foliolate, coriaceous, glabrous ; median leaflet 

 obovate to oblanceolate, broadly pointed or shortly and abruptly apiculate, 

 narrowed below, entire or obsoletely and remotely crenulatc-serrate, about \ 

 in. long, \-\ in. broad ; lateral leaflets much smaller. Petiole not exceeding 

 1 line, or leaves subsessile. Calyx very short, 4-partite, lobes ovate-deltoid, 

 persistent. Anthers muticous. * Petal's not seen. Drupes subsessile, \ in- 

 long, ellipsoidal, rather acute when dry. 



Nile Land. Somali Coast, Col. Playfair! 



Said to afford the Hotai resin. This shrub belongs to the genus Balsamophlmos of Berg 

 (Bot. Zeitung, 1862, lfi3), which, however, can hardlv be maintained as distinct from Hal- 

 samodevdron. This plant must be very nearly allied to, if not identical with, B. Kataf, 

 Kth. {Balsamophheos, Berg. I.e.), which Drs. Schweinfurth and Ascherson report from 

 Abyssinia and Nubia. I have not, however, had specimens for comparison. 



5. B. molle, Oliv. Shrub or small tree with pubescent annual shoots, 

 unarmed or spinescent. Leaves usually fascicled at the ends of the lateral 



