Bailey & Bailey: Woody Plants of National Parks 81 



tivated as an ornamental because of the large yellow flowers. The foliage is 

 occasionally browsed by deer. 



Occurrence. — YOSEMITE, common below the park and possibly occurring inside park 

 boundary: South Fork Merced River just west of park boundary, 5,600 feet- southwest 

 of Deer Flat, west of park boundary. SEQUOIA: 3 miles west of Panorama Peak 3,000 

 feet; Mineral King road; Ash Mountain road. 



Hydrangea Family (Hydrangeaceae) 



Field Guide to the Genera 



Sepals and petals 4; flowers borne smgly or few to many in oblong clusters; cap- 

 sules splitting into 4 sections. 



Leaves oblong to egg-shaped or roundish; petals tapering gradually to the base; 



stamens numerous PHILADELPHUS, p. 81. 



Leaves oblong to narrowly oblong; petals abruptly narrowed to a slalk-like base 



or claw; stamens 8 FENDLERA, p. 83. 



Sepals and petals 5; flowers borne in more or less flat-topped clusters; capsules 

 splitting into 3 to 5 (or 7) sections. 



Leaves narrowly oblong, J/j to ^4 inch long, light grayish-green, smooth, not 



toothed; found in the Southwest FENDLERELLA, p. 83. 



Leaves elliptic to oval, I/2 to 2 inches long, dark green above, white-hairy be- 

 low, coarsely toothed; found in Sierra Nevada and Rocky Mountains 

 JAMESIA, p. 83. 



Mock-orange (Philadelphus L.) 



The mock oranges may be recognized by the opposite leaves and branches, 

 the leaves 3-veined from the base, and the showy white 4-petalled flowers. 

 Littleleaf mock orange, the species occurring in the Southwest, has much 

 smaller leaves than that found in the Pacific coast parks. It may often be 

 confused with Fendlera, which occurs also in the Southwest, but the flowers 

 are a little smaller and the petals not clawed at the base. Lewis mock orange 

 or 'syringa' is very popular as an ornamental shrub and many varieties have 

 been developed under cultivation. The Indians of certain regions used the 

 straight shoots for arrow shafts. Deer and elk browse the foliage to a cer- 

 tain extent. 



Field Guide to the Species 



Leaves I J/2 to 3 inches long; flowers borne in showy clusters of 5 to 20 at the ends 

 of the branches; occurs in the Rocky Mountains and on the Pacific coast 

 1. P. LeTvisi. 



Leaves I/2 to about 1 inch long; flowers 1 to 3 at the ends of the branches; occurs m 



the Southwest 2. P. microphvllus. 



1. Lewis Mock-orange, Syringa (Philadelphus Lcwisi Pursh), fig. 

 30. — Loosely branched shrub 2 to 12 feet high with ascending branches, the 

 young twigs smooth and reddish-brown; leaves opposite, I1/2 to 3 inches long, 

 thinnish, egg-shaped to oblong or rounded, somewhat pointed at the tip, 3- 

 veined, the margins not toothed or with a few low teeth; flowers % to II/2 

 inches across, white, borne in showy clusters on slender branchlets towards 

 the ends of the stems; fruit a dry woody capsule, about % inch long, splitting 



