ON SOUTH-AMERICAN APOCTNACILE. 67 



5. Anacampta S0BMOLLTS, nob. : Tabernmmontana submollis, Mart, et Miill. /. c. p. 70, tab. 32. In Ama- 

 zonas : v. s. in hb. meo et alior. Rio Negro (Spruce 1666) . 



A shrub 3-4 feet Mgli, with, dichotomous compressed branchlets, the axils 1-|-2J in. 

 apart ; leaves lanceolate-oblong, acute at both ends, opake pale green above, yellowish 

 and very opake beneath, with about 16 pairs of paler prominent nerves, 5-7 in. long, 

 1^-2^ in. broad, on stout petioles 3-5 lines long, deeply channelled, fossate at the base, 

 their margins conjoined across the node by a transverse ridge ; panicle lateral, 2 in. long, 

 on a peduncle 1 in. long, with several very short branches bearing flowers on stoutish 

 pedicels 2 lines long, bracteolated at the base ; sepals ovate obtuse, 1 line long, with 

 8 inner small lanceolate scales ; corolla tubular ; tube cylindrical, very little swollen in 

 the middle, 6 lines long; segments oblong, inequilateral, deeply introflected, the ex- 

 tremities descending into the tube ; in aestivation they are sinistrorsely convoluted into a 

 small oval knob 2 lines long ; stamens seated in the middle of the tube upon 5 longi- 

 tudinal pilose lines ; anthers acuminate, with 2 slender aristiform basal prongs ; disk 

 tubular, fleshy, 5-grooved, 5-crenulate, half the length of the 2 free, oblong, puberulous 

 ovaries ; style, clavuncle, and stigmata as in the generic character. 



6. Anacampta hietula, nob. : Tabernmmontana hirtula, Mart. ; Miill. I. c. p. 73, tab. 24. Ad Rio, 

 Orinoco (Spruce 3660) ; Santarem, Rio Amazonas (Spruce 2474) : v. s. in hb. meo Rio Casiquiare 

 (Spruce 3175), Santarem (Spruce 233, sub T.pilifera). 



A lank species, well represented in the drawing cited. Branches fuscous, fistulose, 

 sharply 4-angular, hirsutulous or subglabrous, lenticellated, with axils l-2j in. apart ; 

 leaves oblong-elliptic, acute at both ends, subinequilateral, margins subrevolute, char- 

 taceous, very glabrous, pale green above, yellowish opake beneath, with prominulent 

 patently divaricated nerves terminating in the margin, immersed reticulated veins, 

 5-10 in. long, 1|-3J in. broad, on channelled petioles 3-5 lines long, fossated at the base, 

 there hooded, leaving a deep oblong hollow, and conjoined across the node by a trans- 

 verse ridge ; panicles lateral and 'soHtary at the nodes, 3 in. long, on a deflected, com- 

 pressed peduncle 2 in. long, or shorter, bifid at the summit, each branch bearing several 

 approximated flowers on pedicels 2 lines long, shortly bracteolated ; sepals ovate, imbri- 

 cated, 1 J line long, each furnished at its base with very numerous acute scales ; tube of 

 corolla cylindrical, spirally twisted, 5 lines long ; segments obliquely oblong, 4| lines 

 long, deeply intropUcated and convoluted sinistrorsely, forming in aestivation a knob 

 2 lines long; stamens inserted below the middle of the tube; disk cylindrical, sulcata, 

 crenate on the margin, pilose, shorter than the oblong glabrous ovaries. 



Rhigospika*. 



A group of plants difl'ering from Anacampta in the rigid segments of the corolla — 

 which are erect, and simply convoluted in a pyramidal form in aestivation : their leaves 



* From piyow (rigesco), airelpa (spira), because of the rigidly pyramidal form of the border of the coroUa in 

 aestivation. 



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