66 ON SOUTH-AMEEICAN APOCTNACE^. 



sulcated, compressed, fistulose, dark, puberulous, with axils 3^ in. apart ; leaves elliptic- 

 oblong, acnte at the base, a long narrow acumen at the apex, glabrous, entire, granularly 

 scabrid on both sides, with about 12 pairs of diverging nerves, 4i|-6 in. long, SJ-Sf in. 

 broad, on stout channelled petioles, fossated at the base and conjoined by a transverse 

 ridge across the thickened nodes. The panicles are solitary and lateral at the axils, on a 

 stout striated peduncle 9 lines long, bearing 5-7 or more, closely congested flowers, 

 on bracteolated pedicels 2-3 lines long ; sepals oblong, 2| lines long ; tube of corolla 

 9 lines long; segments gibbously ovoid, 6 lines long; disk cylindrical, surroundiag 

 2 obovoid ovaries. 



3. Anacampta acutissima, nob. : Tabernamontana acutissima, Miill. Fl. Bras. p. 73. In insulis fluv. 



Amazonas : non vidi. 



This species is very near the preceding. Its branches are obtusely angular, sub- 

 puberulous ; leaves oblong-ovate, obtuse at the base, terminated by a long, narrow, cus- 

 pidate acumen, have about 18 pairs of nerves 7 lines apart, are very glabrous, 6f-8 in. 

 long, 2|-3:| in. broad, on petioles 2-2 J lines long (probably deeply fossated and conjoined 

 by a transverse ridge) ; panicle lateral, on a peduncle 4f lines long, bearing from 4 to 7 

 flowers aggregated on pedicels as long as the calyx, and furnished with triangular, 

 obtuse, puberulous, ciliated bracts ; sepals obtusely oblong, glabrous, with ciliated mar- 

 gins, provided with 4 basal scales inside; tube of corolla glabrous outside, pubescent 

 within along 5 longitudinal lines in the middle, where the stamens are inserted; 

 segments oblong, narrowed horizontally, outside furfuraceous at the base, beyond 

 glabrous, convoluted sinistrorsely in aestivation ; disk acutely 5-angled, surrounding the 

 ovaries. 



4. Anacampta longii'olia, nob. : Tabernrnmontana longifolia, Benth. Hook, Journ. Bot. iii. 243 ; A. DC. 



I. c. p. 368. In Guiana : v. s. in herb, meo et alior. Guiana Brit. (Schomb. 293 et 41 bis), Surinam 

 (Miq. sub T. oblongifolia) , Cayenne (Van Rohr, sub T. triquetra). 



This must not be confounded with another 41 of Schomburgk's plants, which is 

 Thyrscmthus laurifolius. The branchlets are stout, angular, striolated, subfistulose, with 

 axils l|-2 in. apart; its subcuneate oblong leaves, acuminate at the summit, are 

 5-10 in. long, 2-2J in. broad, on stout deeply fossate petioles 3 lines long, con- 

 joined across the axils by a transverse ridge; inflorescence terminal at the end of a 

 very short 2-leaved branchlet, so that it appears almost axillary ; peduncle stout, 1 in. 

 long, divided at its summit into two erect stout portions 1 in. long, each bearing about 

 20 very closely alternate flowers, most of which are caducous ; pedicels 3-4 lines long, 

 issuing from as many imbricating, obsoletely puberulous, oblong, oval bracts 2 lines 

 long, mostly caducous ; sepals oblong, obtuse, 2 lines long, each with a 4.dentate scale 

 within; tube of corolla cylindrical, 9 lines long, contracted at the mouth; segments 

 oblong, gibbous, (expanded) 6 lines long, 4 lines broad, sinistrorsely convoluted, their 

 extremities introflexed and descending into the mouth of the tube; stamens inserted 

 above the middle of the tube ; ovaries 2, oblong, pointed, free, and half-enclosed within a 

 fleshy, cylindrical, 5-grooved, 5-crenate disk ; style, clavuncle, and stigmata as in the 

 generic character. 



