230 
LOGANIACE-33. 
panicles. Distrib. Round the world in the tropics. Species 350. 
Very like Bubiacece , from which it mainly differs by its free ovary. 
Ovules 2 in a cell. Corolla-tube long- 1. Gjertnera. 
Ovules many in a cell. 
Corolla-tube long. Fruit baccate 2. Nicodemia. 
Corolla-tube long. Fruit capsular 3. Buddj/eia. 
Corolla-tube short. Fruit capsular 
Corolla pentamerous, with contorted aestivation ... 4. Geniostoma. 
Corolla tetramerous, with imbricated aestivation ... 5. Nuxia. 
Corolla-tube short. Fruit a large drupe, pulpy inside . 6. Brehmia. 
1. GJERTNERA, Lam. 
Calyx campanulate ; teeth 5, distinct or obscure. Corolla hypocra- 
teriform ; 5 spreading lobes much shorter than the cylindrical or nar- 
rowly funnel-shaped limb. Anthers 5, nearly sessile at the throat of 
the corolla. Ovary 2-celled, with a single ovule in each cell ; style 
filiform, with two branches. Fruit nearly dry, oblong or obovoid, with 
two pyrenes. — Low erect shrubs, with the flowers in terminal corymbose 
panicles, or congested into heads. Distrib. Tropics of the Old 
World. Species about 20. Just like Chasalia except in the superior 
ovary. 
Flowers in congested terminal globose heads. 
Leaves obovate, obtuse 1. G. rotundifolia. 
Leaves oblanceolate-oblong, acute 2. G. crassiflora. 
Flowers in corymbose panicles, not pedicellate. 
Teeth of calyx very obscure 3. G. Edentata. 
Teeth of calyx broad-deltoid. 
Leaves acute 4. G. vaginata. 
Leaves obtuse 5. G. psychotrioides 
Teeth of calyx lanceolate or deltoid, cuspidate . . 6. G. pendula. 
Flowers in corymbose panicles, distinctly pedicellate. 
Calyx in. long ; teeth obscure 7. G. longifolia. 
Calyx very large ; teeth broad, deltoid 8. G. calycina. 
1. G. rotundifolia, Bojer. ; A. DC. Prod. ix. 33. A much-branched 
glabrous shrub, with stout branches. Leaves crowded, nearly 
sessile, obovate, obscurely cuspidate, coriaceous, 2-4 in. long, the 
main ribs prominent on both surfaces ; lower stipules deltoid ; upper 
lanceolate. Flowers in a dense globose terminal head. Calyx sessile, 
i in. long ; teeth distinct, lanceolate. Corolla white, £ in. long ; 
teeth half as long as the tube. Fruit not seen. Bojer in Mem. Soc. 
PLelv . viii. tab. 2, ( dissections ). 
Mauritius, in woods of Grand-port, Savanne, and Grand Bassin. G. cuneifolia 
Bojer 1. c., which I have not seen, judging from the description and plate may well 
be the same species. Endemic. 
2. G. crassiflora, Bojer. ; A. DC. Prod. ix. 33. A glabrous shrub, 
with slender terete branches. Leaves short-petioled, oblanceolate- 
