186 Lxx. rubiacej: (hiern). [Psilanthus. 



or oblong, contorted dextrorsely (as seen from inside) in aestivation. 

 Stamens 5-4, inserted at the throat of the corolla, glabrous ; filaments 

 short or obsolete ; anthers linear, included or partly so, fixed by the 

 back, at or above the middle. Disk fleshy, glabrous. Ovary 2-celled ; 

 style slender, glabrous, bifid or bidentate, included, divisions linear or 

 ovate \ ovules solitary, " widely adnate to the middle of the septum, 

 amphitropous " (Benth. et Hook. f. I.e.). Berry obovoid-oval, rather 

 fleshy (in the typical species), crowned by the accrescent calyx-lobes ; 

 pyrenes 2. Seeds oblong ; umbilicus ventral. — Glabrous shrubs, with 

 opposite branches and leaves, short ovate stipules connate at the base, 

 and solitary or subsolitary axillary or terminal subsessile w^hite herma- 

 phrodite flowers of moderate size, with or without calyculate bracteoles 

 at the base. 



An endemic genus. 



Flowers axillary and terminal, pentamerous, l|-2^in. long. 



Anther* half-exserted .... 1. P. Mannii. 



Flowers terminal, pentamerous, 1 in. long. Anthers wholly 



included 2. P.? ebracteolatiis. 



Flowers terminal, tetramerous, § in. long. Anthers wholly 



included 3. P. ? tetramerus. 



1. P. XHannii, Hook. /. Ic. PI. t. 1129. A shrub, 10 feet high, 

 shining. Leaves oval, obtusely and abruptly acuminate, rather oblique 

 at the base, firmly chartaceous, 3-6 by 1^-2^ in. ; lateral veins about 

 6-8 pairs ; petiole ^-^ in. ; stipules very short. Flowers lJ-2^ in. 

 long when expanded, axillary (and in the terminal axils) subsolitary, 

 subsessile ; bracteoles cup-shaped, surrounding the base of the calyx. 

 Calyx green ; limb shorter than the ovary in flower, accrescent ; seg- 

 ments 5, ovate, in fruit lanceolate-oblong and |— J in. long. Corolla 

 white; tube very slender; limb 2-3 in. fliameter ; segments 5, oval. 

 Anthers 5, -| in. long, sessile, half-exserted, fixed by the middle of the 

 back. Style wholly included, slender, bifid ; lobes linear. Fruit 

 obovoid-oval, |— f in. long, crowned by the persistent foliaceous calyx- 

 segments. 



upper Guinea. Fernando Po, on the beach, Mann .' 



2. P. ? ebracteolatus, Hiern. A shining shrub 6-8 feet high. 

 Branches patent. Leaves elliptical, obtusely acuminate or obtuse, 

 wedge-shaped at the base, membranous, 1^-4 by f-l-^ in. ; lateral 

 veins about 4-5 pairs, very sleader, inconspicuous ; petiole ^V"} ^^- 5 

 stipules small, connate or more or less sheathing. Flowers 1 in. long, 

 terminal, solitary, subsessile, ebracteolate. Calyx green ; limb very 

 shallowly cup-shaped, obscurely dentate, glabrous. Corolla white ; 

 tube slender, funnel-shaped above ; limb |-1 in. diameter, lobes 5, 

 ovate, subobtuse or mucronulate. Anthers wholly included, ^ in. long, 

 fixed at the back above the middle, just reaching the top of the corolla- 

 tube ; filaments • short deflexed. Style included, bidentate or bifid. 

 Ovules pendulous from the apex or (according to figure in the Kew 

 herbarium) attached rather above the middle. 



upper Guinea. Bagroo River, Mann ! Ambas Bay, Mann ! 



