LOGANIACEAE. 163 



perfect small white shortly salver-shaped gamopetalous flowers 

 in terminal panicles ; and berry-like usually black fruit. 



1. Leaves glabrate : fruit glossy, rather large (8 mm.) 



in clusters protruding beyond the branches. 2. 

 Leaves often pubescent beneath, at least on the mid- 

 rib : fruit dull, rather small (5 mm.), in small 

 clusters surpassed by the shoots. 3. 



2. Twigs glabrous : fruit round. L. ovalifolium. 

 Twigs puberulent : fruit rather ovoid. L. vulgare. 



3. Habit erect : calyx glabrate. L. amurense. 

 Habit spreading : calyx usually puberulent. 4. 



4. Tall, with curving branches. L. Ibota. 

 Dwarf, with horizontal branches. L. Ibota Regelianum. 



JASMINUM. Jessamine. 



Shrubs, sometimes scrambling, with white wood with small 

 ducts crowded in spring but sparser and much smaller in sum- 

 mer, and fine medullary rays ; slender mostly angled twigs ; 

 round chambered pith ; opposite or alternate but 4-ranked some- 

 what raised small crescent-shaped leaf-scars with a single bun- 

 dle-trace ; no stipule-scars ; round or ovoid or spindle-shaped 

 sessile buds ; odd-pinnate or by reduction apparently simple 

 petioled leaves; fragrant salver-shaped gamopetalous perfect 

 flowers in axillary clusters ; and 2-seeded berries. 



1. Leaves evidently compound. 2. 



Leaves i-foliolate, appearing simple. J. pubescens. 



2. Leaves opposite. 3. 



Leaves alternate. J. humile. 



3. Flowers white. 4. 



Flowers yellow. J. nudiflorum. 



4. Bushy. J. grandiflorum. 

 Scrambling. J. officinale. 



Family LOGANIACEAE. Strychnine Family. 

 A moderate chiefly tropical family, mainly notable as- af- 

 fording the poison strychnine : the following attractive climber 

 medicinal. 



