SOLANACEAE. 



335 



LYCIUM. Matrimony Vine. 

 (Family Solanaceae). 



Spreading or (often high) 

 scrambling shrubs with spinescent 

 twigs: deciduous. Twigs slender, 

 5-angled, glabrous, often whitish 

 or short striate: pith moderate, 

 spongy. Buds small and incon- 

 spicuously multiple, or develop- 

 ing into very dwarf aggregates, 

 subglobose, indistinctly scaly. Leaf- 

 scars alternate, crescent-shaped, 

 small, somewhat raised: bundle- 

 trace 1: stipule-scars lacking. 



Winter-character references: 

 Lycium chinense. Shirasawa, 235. 

 L. Jialimi folium (L. bar'barum of 

 common usage; L. vulgare). Bose- 

 mann, 51; Schneider, f. 83. 



The bushy southwestern ly- 

 ciums, in common with condalias, 

 ceanothuses, etc. enter into the 

 composition of chaparral. 



1. Intricately branched bushes of the Southwest. 2. 

 Loosely branched, sometimes scrambling. 3. 



2. Twigs straight, gray. L. californicum. 

 Twigs zig-zag, buff. L. parviflorum. 



3. Wide-spreading or scrambling. (1). L. chinense. 

 Bushy, with moderate shoots. 4. 



4. Twigs red-brown, with fissured gray surface. L. pallidum. 

 Twigs pale. 5. 



5. Axils slightly hairy. (Garrambullo). L. Torreyi. 

 Without hairs in the axils. 6. 



6. Cultivated everywhere. (Matrimony vine). L. halimifolium. 

 Wild, in the South. L. carolinianum. 



