Mitragyne.'i lxx. RUBUCEa: (hiern). 41 



Benegamhrn, Bade, Perrottet ; Niger, AnsclU, Th. Voffel / ; Nupe, 5aW«- / ; Gambia. 

 Dr. Mackenzie Skues ! 



XSrile Xiand. By Gazelle Kiver, Schiveinfurth ! 



Grows in moist places. The wood is used for carving. 



2. BS. maorophylla, Biern. A tree from 20 ft. upwards to 

 60 ft., sometimes of vast size with very stiff trunk, shining, nearly 

 glabrous or somewhat hispid. Leaves elliptical, often brosidly so, 

 thinly coriaceous or papery, rounded or sometimes shortly acuminate at 

 apex, obtuse or rounded or sometimes wedge-shaped at base, with 8-10 

 veins on each side of the midrib, 3-21 by 2-15 in. ; petiole ^2\ in. ; 

 stipules obovate, 1^-4 in. Flowering heads ^-^ in. diara., cymose, 

 often umbellate. Calyx with shallow lobes, ciliate (quite entire 

 according to De Candolle). Corolla ^\- in. long, greenish white, 

 fragrant ; limb shortly pale-pilose-tomentose outside ; throat glabrous ; 

 lobes with filiform fragile tips. Anthers included, erect. Fruiting 

 heads -^1 in. diam. — Nauclea stijpulosa, DC. Prodr. iv. p. 346. 

 N. macrophylla, Perr. et Lepr., non Roxb. nee Blum., ex DC. I. c. 

 N. stipulacea^ G. Don Gen. Syst. iii. p. 469. N. hracteosa^ Welw. 

 Synops. Explicat. p. 48, n. 130 (1862). Stephegyne, sp., sub. horn, 

 specif, stipulata, Benth. etHook. f. Gen. PI. ii. p. 31. 



Upper Guinea. Gambia, Leprieur ; Sierra Leone, Afzelitis! ; River Nun, 1® 

 N. lat., Mann! ; Niger, Barter! ; Fernando Po, Th. Vogel! ; Quorra, Barter!. 

 Xrile Iiand. Niamniara-land, Schweinfurth ! Djur-land, Schweinfurth ! 

 Xiovirer Guinea. Golungo Alto, Welwitsch ! 



4. UNCARIA, Schreb. ; Benth. et Hook. f. Gen. PI. ii. p. 31. 



Flowers crowded in rather loose globose heads, usually pedicelled, 

 without intei*vening bracteoles. Calyx-tubes not cohering, at length 

 fusiform ; limb campanulate, 5-lobed. Corolla funnel-shaped with an 

 elongated tube, valvate in aestivation. Stamens 5, inserted at the 

 throat of the corolla ; filaments short ; anthers shortly oblong, cells 

 more or less produced, or in some species setose at the base. Disk 

 inconspicuous. Ovary fusiform, 2-celled ; style exserted ; stigma 

 clavate or capitate ; ovules numerous, ascending. Capsule septicidal, 

 many seeded ; testa produced at both ends into capillary appendages. 

 — Climbing shrubs with opposite, interpetiolar fugacious stipules, and 

 lower peduncles usually transformed into recurved spines. 



A genus of several species including, besides the following, one from Guiana and 

 several from Tropical Asia. 



1. U. airioana, O. Bon, Gm. Syst. iii. p. 471, n. 18. A glabrous 

 or sparingly pubescent shrub 4-40 ft. high. Leaves ovate-oval or 

 lanceolate, acuminate, rounded at the base or nearly so, tliinly 

 coriaceous, with 5-7 lateral veins on each side of the midrib, shortly 

 petiolate, 2-6 by 1-4 in. ; stipules ^-^ in. long, usually bipartite with 

 narrow partitions. Spines at first nearly straight, afterwards crooked. 

 Flowering heads lJ-2 in. diam. Calyx tawny, as well as the corolla 

 shortly and appressedly pilose-tomentose ; limb shortly lobed. Corolla 

 about ^ in. long, greenish yellow. Stamens glabrous; anther-cells 

 obtusely produced at base. Fruiting heads 3-3^ in. diam. ; pedicels 



