346 RITBIACEiE. 



** Stipules deciduous, bidentate ; flowers ternatehj clustered. 



144. P. Pavetta, DC. Glabrous ; internodes cylindrical, smooth ; leaves membrana- 

 ceous, lanceolate-oblong or eUiptical-oblong, pointed, petioled : primary veins curved, distant : 

 stipules minute, subdislinct : lobes deltoid ; panicle corymbi form : flowers lernate, subses- 

 sile at the top of its branches ; corolla glabrous, salver-shaped : tube (6'" long) filiform-cla- 

 vate, slightly curved: lobes uneqnal, oblong-lanceolate, subacute, one-third as long as the 

 tube; berry subglobose, laterally subcompressed. — Plum. Ed. Burnt, t. 156./. 1. SI. t. 

 202./. 2: bad.— Psychotria, Sw. Pavetta pentandrs, Sw.! — A shrub, 6' high: habit of 

 Faramea, but berry of Crocothyrsus ; flowers white, odorous. — Hab. Jamaica !, Pd., Al., 



Wils., Wullschl., in mountain-woods, Hanover, Manchester, S. Anns ; Antigua !, Wullschl. ; 



[Cuba ! ; French islands !]. 



Sect. 2. Stephanium. — Berry globose, nearly smooth : pyrena flat at the commissure. 

 Albumen orthospermous •. test corrugate-loose. — Stipules single in the axils, 2-lobed, 

 united at the base, persistent. 



145. P. guianensis, Aubl. Glabrous; internodes cylindrical, uppermost subtetrago- 

 nal ; leaves large, oval-oblong : veins costate : petiole exceeding the shortly 2-lobed stipules; 

 panicle thyrsoid, long-peduncled : flowers pedicellate, numerous ; corolla pimpled-pubescent, 

 clavate (5"'-6'" long) : lobes short, slightly unequal. —Aubl. t. 66.— Psychotria Paliconrea, 

 Sw. — A shrub or tree; leaves 12"-5", stipules 4"'-3"' long; flowers yellow; berry H"' 

 diam. — Hab. Trinidad \, Sch., Lockh., Cr., common in ravines ; [Panama !, Guiana !, equat. 

 Brazil!]. 



48. CEPHAELIS, Sw. 



Flowers of Psychotria, but capitate : receptacle involucrate, paleaceous. Berry 2-py- 

 renous : pyrense obtusely 5-ribbed or smooth. Albumen cartilaginous. — Shrubs or herbs; 

 stipules connate-sheathing al the base, persistent ; flower-heads single, usually terminal. 



Sect 1. Tapogomea, DC. — Berry nearly smooth: py rente and albumen flat, or slightly 

 incurved at the commissure. — Involucral bracts connate at the base, spreading, coloured. 



146. C. tomentosa, W. Shrubby, shaggy on the younger parts ; internodes cylindri- 

 cal ; leaves elliptical or elliptical-oblong, poiutlcted : stipules much longer than their sheath, 

 2 on each side, lanceolate-subulate, long -acuminate ; flower-heads terminal, peduncled : seg- 

 ments of the involucre large, cordate or ovate, pointed (or rounded), much exceeding the 

 flowers. — Aubl. t. 61. — Tapogomea, Aubl. — Leaves 8"-4", stipules 6"' long : flower-head 

 12"'-6'" diam. ; involucre crimson, flowers yellowish-white. A Bogota specimen with long- 

 exserted stamens proves the identity of Carapichea and Cephaelis. — Hab. Trinidad !, Sieb. 

 Tr. 41, Lockh., Sch., Cr., in moist woods; [Mexico! to Guiana!, equat. Brazil!, and 

 Peru!]. 



147. C. punicea, V. (1796). Shrubby, glabrous; internodes tetragonal, leaves ellip- 

 tical-oblong, with a short, bluntish point : stipules as long as their sheath, axillary, rounded, 

 obtusely 2-lobed, spreading ; flower-heads terminal, long-peduncled : segments of the invo- 

 lucre 2, large, broadly ovate, bluntish, much exceeding the flowers. — C. elata, Sw. — 12' -15 

 high ; leaves 6"-3", stipules 2"' long ; flower-head 8"'-6"' diam. ; involucre purple. — Hab. 

 Jamaica !, Pd., March, in high mountains ; [Guadeloupe ; New Granada !]. 



Sect 2. Caxlicocca, DC. — Pyrense obtusely ^-ribbed, involute at the commissure. Albumen 

 campy lospermous, overlapping the projection of the pyrena. — Involucral bracts distinct or 

 nearly so, as long as or shorter than the flowers. 



148. C. Swartzii, DC. Shrubby, glabrous ; uppermost internodes tetragonal ; leaves 

 elliptical-oblong, pointleted : siipular sheath truncate (or 2-fid), spreading, many-awned, 

 with the awns rigid, deciduous; flower-heads terminal, peduncled -. bracts 5, ovate-round- 

 ish : paleae rounded at the top or obsoletely lobed. — C. violacea, Sw. (non Aubl.). — Leaves 

 5"-3' , peduncle 1" long ; flower-heads 5"'-10'" diam. ; bracts, flowers, and berries blue. — 

 Hab. Dominica !, Imr., S. Lucia, in mountain-woods ; [Guadeloupe !, Martinique !, Sieb. 

 Hart. 841. 



