88 ON SOTJTH-AMEEICAN APOdOTACILE. 



branches much thickened at the nodes, forming rough annular rings f-l| in. apart, 

 where the leaves have fallen off. The leaves are lanceolate, rarely oblong, acute and 

 subinequUateral at the base, gradually acuminate at the summit, with subrevolute 

 margins, thinly chartaceous, fuscous above, pale and yellowish below, eglandular, with 

 slender patent nerves suddenly arcuately conjoined within the margins, 2 to 4 in. long, 

 ^-1^ in. broad, on slender petioles 1^-3 lines long : 6 or more flowers are crowded on a 

 short axillary peduncle 2 lines long, upon pedicels 3 lines long ; 5 acute sepals 1 line 

 long, each with an internal lanceolate scale ; tube of corolla narrowly cylindrical, 

 6-8 lines long, subventricose in the middle ; the segments oblique oblong, 6 Unes long, 



2 lines broad ; stamens included in the swollen portion of the tube ; fuscous anthers 

 shortly biaristate at the hase, with an acute membrane at the summit ; a disk of 5 ovate 

 membranaceous lobes longer than the ovaries ; 2 follicles, subterete, 1-2 in. long ; seeds 

 small, oblong, smooth. 



6. Malouetia lactiflua, nob. : Taberncemontana, sp., Benth. I. c. p. 245 ; Schomb. Ann. Nat. Hist. i. 



p. 64 : V. s. in herb. Mus. Brit. R. Berbice (Schomb. 168) : foliis oblongis, fusee rubro-viridibus, imo 

 subacutis, apice in acumen lineare obtusulum constrietis, chartaceis, marginibus crebre undulatis, 

 supra fusco-viridibus, rubentibus, nervis semiimmersis, opacis, nigro punctulatis, subtiis pallidioribus,. 

 subferrugineo-opacis, subrugulosis, costa nervisque patentibus, prominulis, rubellis ; petiolo tenui, 

 canaliculato, quam limbus 12plo breviore : floribus ignotis. 



There can be no doubt that this is a species of Malouetia. It is a very lactescent tree, 

 yielding a vegetable milk, used by the natives, and also forms a useful varnish, according 

 to Schomburgk. The leaves are 3 in. long, 1 in. broad, on a petiole 3 lines long. 



7. Malouetia Schombubgkii, Miill. Linn. xxx. p. 409. In Guiana Brit. Pomaroon (Schomb. 830, 



1386) : non vidi. 



A species resembling M. nitida in habit. It has dark, slender branches, with axils 

 If 2| in. apart, its branchlets being paler; leaves oblong-ovate, acute at both ends, 

 chartaceous, 4-4| in. long, 14-20 lines broad, on petioles 9|-16 lines long ; flowers 1 in. 

 long ; sepals linear-lanceolate, erect, If line long ; tube of corolla slender above, broader 

 at its base, 6 lines long ; segments linear acute, hispidulous within at the base ; stamens 

 partly exserted ; disk of 5 erect, fleshy, truncated lobes, enclosing 2 ovoid ovaries, 

 hispidulous at their apex ; style slender below, 4J lines long. 



8. Malouetia obtusifolia, A. DC. Prodr. viii. 379. In Guiana : v. s. in herb. Mus. Brit. Cayenne 



(Martin) . 



The leaves are stifly chartaceous, with entire, subrevolute margins, of a reddish hue 

 above, opake, with immersed nerves, beneath ferruginous-opake, with slender prominu- 

 lent nerves having porous glands in their axils, 3^ in. long, li in. broad, on petioles 



3 lines long ; pedicels 5 lines long ; sepals 1^ line long ; tube of corolla 5 lines long ; 

 segments lanceolate-oblong, 9 lines long, with dextrorse contortion ; stamens included, 

 half-exserted at their apex. 



9. Malouetia lanceolata, MuU. I. c. p. 93, tab. 29. fig. 3 : Malouetia tamaquarina, var. Brasiliensis, 



