320 



OLEACEAE. 



JASMINUM. Jessamine. 

 (Family Oleaceae). 



Shrubs, tender in the North, 

 often scrambling or climbing: 

 sometimes evergreen. Twigs 

 slender, often 4-lined: pith small, 

 roundish, continuous or cham- 

 bered. Buds usually solitary, ses- 

 sile, small, divergent, sometimes 

 developing the first season, with 2 

 or 3 or, when elongated, several 

 pairs of scales. Leaf-scars op- 

 posite, or separated in 4-ranks, 

 crescent-shaped, small, somewhat 

 raised: bundle-trace 1, small: sti- 

 pule-scars lacking. Leaves, when 

 present, mostly pinnately parted 

 or compound. 



Winter-character references: - 

 Jasminum fruticans. Schneider, f. 

 115.- J. nudiflorum. Schneider, f. 

 Hi). J. officinale. Schneider, f. 

 115. The chambered or discoid 



pith is noted by de Candolle, Vegetable Organography, 1:48; 

 Foxworthy, Proceedings of the Indiana Academy of Sciences 

 for 1903, 192; Morren, Annals and Magazine of Natural His- 

 tory, 4:84, pi. 2; Solereder, Systematic Anatomy, 1:525. 



1. Twigs terete: pith spongy, becoming chambered. 2. 

 Twigs acutely 4-lined, glabrous: pith continuous. 4. 



2. Very hairy: climbing. 3. 



Glabrate: loosely scrambling. J. officinale. 



3. Pubescence white. J. Sambac. 

 Pubescence rusty. (1). J. pubescens. 



4. Buds globose, with broad blunt scales. (2). J. humile. 

 Buds and their scales acute. (3). J. grandiflorum. 



