50 Lxxxiv. APOCYNACE^ (stapf). [Landolphici. 



except the acutely edged midrib, pubescent. Corolla whitish ; tube 

 cylindric below to the middle, then much inflated and distinctly 

 constricted close to the mouth, IJ-lJ lin. long, minutely pubescent 

 without in the upper half ; lobes linear-oblong, subacute, as long as the 

 tube or slightly shorter, finely pubescent without along the middle, 

 mouth very narrow, very minutely pubescent. Stamens in the upper 

 third of the tube ; anthers linear-oblong, acute. Ovary ovoid, glabrous ; 

 style and stigma about 1 lin. long, the latter cylindric from a thicker 

 base, bifid. Fruit obovoid-globose, 1 J-3 in. in diam. ; seeds angular, G-8 

 lin. long, numerous. — K. Schum. in Engl. Jahrb. xv. 404, 406, 408, 410, 

 fig. ] , A.C.D.E. ; Christy, New Comm. Plants k Drugs, vi. 54 ; Ficalho, 

 PI. Uteis Afr. Port. 42, 218-220; Kew Bulletin, 1892, 68 ; L. Planch. 

 Prod. Apocyn. 318; Dewevre, Caoutch. Afric. Monogr. Landolph. 46 ; 

 K. Schum. in Engl. Pfl, Ost-Afr. B. 225, 445, 457-8, fig. A, C-E. ; C. 

 ;>15, in Engl. & Prantl, Pflanzenfam. iv. ii. 130, fig. 50, A, C-E., and 

 in Engl. Jahrb. xxviii. 452 ; Chimani in Bot. Centralbl. Ixi. (1895) 456, 

 t. ii. fig. 1^, 24, 25; Vogtherr in Kohler, Mediz. Pflanz. sub Lan- 

 dolphici comoi^ensis ; MollerinTropenpfl. i.(1897) 187 ; J. R. Jackson in 

 Bull, of Pharm. xi. (1897) 255 ; Pierre in Bull. Soc. Linn. Paris, 1898, 

 14 ; Jumelle, PI, a caoutch. et a gutta, 58 ; Morris in Journ. Soc. Arts, 

 xlvi. 779 ; Sadebeck, Kulturg. Deutsch. Kolon. 272, 276 ; Warb. in 

 Tropenpfl. iii. (1899) 222, 314, 311, fig. A-C, and Kautschukpfl. 120, 

 117, fig. A-C ; Mikosch in Wiesner, Rohstoffe, ed. 2, i. 363 ; Liebert 

 in Tropenpfl. iv. (1900) 367 ; Hallier f. Kautschuklianen in Jahrb. 

 Hamburg. Wissensch. Anstalt. xvii. (1899), 3. Beih. 38-41, 71-74 excl. 

 var. ; Henriques, Kautschuk, Tab. iv. ; Schlechter, Westafrik. Kaut- 

 schuk-Exped. 229 ; Hook. Ic. Plant, t. 2755 ined. L. elastica, Vatke 

 ex Dewevre, I.e. L. tomentosa, Dewevre, I.e. 45 (the Zanzibar plant). 

 L. pohjcmtha, K. Schum. in Engl. Jahrb. xxviii. 452. L. sp. 

 (Kirk's specimens), Collins, Report Caoutch. 28. Vahea Kirkii, Sadeb. 

 in Jahrb. Hamburg. Wissensch. Anstalt. ix. i. (1891) 226. V. elastica, 

 Klotzsch ex Dewevre, I.e. 46. Carissa sp., Collins, I.e. 



Wile Iiand. British East Africa : Mombasa, Hildehrandt, 1999 ! 



IMCozamb. Bist. Gorman East Africa : Usambara ; Amboni, Hoist, 2475 ! 

 Masbeiia, Msagati, i/o/.v/, 8841' ! Pangani, /S^M^/maww, 59. Usaraino ; Dar-es-Salaam, 

 Hildehrandt, 1222 ! Stuhlmann, 49 ! 50, 8533 ! 30 miles inland from Dar-es-Salaam, 

 Kirk! Kisserawe, SMilmann, 6185! Useramo Plateau, Ooetze, 10! Kingani, 

 Stuhlmann, 6586! Mengwa, Stuhlmann, 8614! Kola, Busse, 82! Pugu Hills, 

 Goetze, 5! Barikiwa, Tratin ; hillsides near Langenburg, 1600 ft., Ootze, 871! 

 Portuguese East Africa : Lower Zambesi ; Boror, Peters ! Shupanga, Kirk, 12 ! 

 British Central Africa : Nyasaland ; Shire Highlands, Buchanan ! Zomba Plateau, 

 Whyte, 3 ! and without precise locality, Buchanan, 182 ! 220 partly ! Stevenson 

 Road, 5000-6000 ft., Scott-Elliot, 8375 I 



This is one of the most important rubber plants of East Africa. A small-leaved 

 variety occurs at Delagoa Bay (Z. Kirkii, var. delagoensis, Dewevi'e, I.e. 48). 



Var. /3 dondeensis, Stapf. A shrub, 6-9 ft. high, with pendulous branches or 

 rnmbling amongst other shrubs and tiees. Fruit globose, pale yellow when fresh, 

 bluish-black when dry, 3-3^ in. in diam. ; pericarp 3 lin. thick, smooth ; seeds about 



