TREES AND SHRUBS 143 



Cymes flat-topped, with several compound rays, 

 the axis not continuous. 

 Leaflets less than 2% inches long, ovate to 



oblong, short acuminate, good sized tree. 3. S. mexicana. 



Leaflets larger, 3 to 6 inches long, lanceolate, 

 long attenuate; branches and leaves glab- 

 rous; flowers 5 or 6 mm. broad; small 

 free well defined trunk. 4. S. neomexicana. 



2. SY MPHORI CARPUS L. Snowberry 



Branching shrubs 5 feet high or less with opposite, simple 

 short-petioled leaves and small mostly tubular flowers, in few-flow- 

 ered axillary clusters; hypanthium cup-shaped to sub-globose; sepals 

 4 or 5, unequal ; corolla white or reddish, tinged, sometimes campanu- 

 late, mostly tubular, funnelform; lobes 4 or 5, almost equal; stamens 

 4 or 5, adnate to the corolla; ovary 4-celled; berry fleshy, 2-seeded. 



Corolla 5 mm. long or less, open campanulate. 1. S. pauciflorus. 

 Corolla 8 to 12 mm. long, salverform or nar- 

 rowly funnelform. 

 Corolla 6 to 8 mm. long; leaves thick, dense- 

 ly pubescent; seeds rounded at both ends. 2. S. rotundifolius. 

 Corolla 8 to 12 mm. long; leaves thin, sparing- 

 ly pubescent; seeds acute at one end. 3. S. oreophilus. 



3. LONICERA L. Honeysuckle 



Shrubby vines with trailing rather stiff stems and shreddy 

 bark; leaves opposite, entire, short-petioled, the upperones connate 

 perfoliate; flowers mostly sessile and whorled at the ends of the 

 stems; hypanthium subglobose or ovoid; sepals 5; corolla tubular to 

 funnelform or broader, more or less lipped; stamens 5, adnate to 

 •the corolla tube; ovary 2 to 3 celled, ovules numerous; fruit a 

 fleshy berry, few seeded. 



Limb of the corolla nearly regular; inflorens- 

 cence pedunculate; leaves campanulate 

 ciliate. 1. L. arizonica. 



Limb of corolla deeply bilobiate; inflorescence 



sessile; leaves not ciliate. 2. L. dumosa. 



