544 Lxxxvi. LOGANiACE^ (baker). [Gcertncra, 



Panicle dense, 1^-2 in. long; bracts minute. Calyx campanulate, 

 y\- in. long; teeth very short. Corolla bright red, J in. long; lobes 

 shorter than the tube. Fruit unknown. 



JmO-wct Guinea. Gaboon : Muntla; Sibange Farm, Soyaux, 24! 



^5. G. occidentalis, Baill. in Bull. Soc. Linn. Paris, i. 235. An 

 erect shrub, about 10 yards high, glabrous in all its parts. Leaves 

 petioled, lanceolate, acuminate ; stipules united into a sheath half as 

 long as the internodes. Inflorescence terminal, very compound. 

 Calyx campanulate, entire or faintly toothed. Corolla i-J in. long, 

 with a ring of hairs in the tube below the insertion of the included 

 stamens. Fruit ovoid -oblong, 1 -seeded. 



Upper Guinea. Seneganibia : by the Kio Pongos, Ileudelot, 888. 



IiO'wer Guinea. Gaboon, Dujjarquet ^' Griffon de Bellay, 232. 



Order LXXXVII. GENTIANE^. (By J. G. Baker, with 

 additions by N. E. Brown.) 



Flowers usualh^ regular and hermaphrodite. Calyx inferior, 4-5- 

 lobed or partite ; lobes usually imbricate. Corolla gamopetalous ; tube 

 campanulate, funnel-shaped or cylindric ; lobes usually 4-5, contorted, 

 imbricate or induplicate-valvate. Stamens as many as the corolla- 

 lobes, inserted in the corolla-tube or at its mouth ; filaments filiform or 

 dilated at the base ; anthers dorsifixed or basifixed, dehiscing longitu- 

 dinally, rarely by 2 apical pores or short slits, sometimes spirally 

 twisted. Disk or annular or of 5 glands. Ovary superior, bicar- 

 pellary, 1-2-celled ; ovules usually many in a cell ; style simple ; 

 stigma entire or 2-lobed. Fruit usually capsular and dehiscent, 

 septicidally 2-valved. Seeds usually sessile, copiously albuminous, 

 sometimes winged ; testa membranous or crustaceous ; embryo small. 

 — Annual or perennial herbs, rarely shrubs, nearly always glabrous. 

 Leaves opposite except in Menyantkece, exstipulate. Flowers in 

 terminal cymes or clusters, or axillary and clustered or solitary. 

 Inflorescence normally blue, yellow, red or white. 



Species 500-600, most abundsint in the temperate regions of both liemispheres, in 

 the tropics principally found on the mountains. 



3Ierisfosfi/liis. described as a new genus under Gentianece by Klotzsch in Peters, 

 Reise Mos^anib. Kot. 267, with three species, appears to be identical with Kalanchoe 

 in CrassulacecB. 



Tribe I. Exacese. — Leaves opposite. Corolla-lohes contorted. Ovary 2- 

 celled. 



Anthers exserted beyond the moutli of the corolla- 

 tube. 

 Stamens inserted below the corolla-sinuses; anthers 



coriaceous ....... 1. ExACUM. 



Stamens inserted at the corolla-sinuses ; anthers 



submembranous ...... 2. Seb.ea. 



Anthers included in the corolla-tube or only reaching 



to its mouth 3, BELMO^'TIA. 



