( ONVOLVULACE^fi. 



385 



Stamens 2, 3, or 4. Ovary superior, 2-celled with 2 or more ovules in 

 each cell. Seeds anatropous, with a large straight embryo in hard 

 fleshy endosperm or the endosperm lacking. The typical 01eacea3 

 have simple leaves and a drupaceous fruit as in the Olive of cultivation. 



1. FRAXINUS L. Ash. 

 Leaves unequally pinnate, exstipulate, deciduous. Flowers small, 

 in small crowded panicles, appearing just before the leaves and from 

 separate buds, dioecious or polygamous. Stamens (in our species) 2. 

 Stigma 2-lobed. Fruit a 1 -seeded samara, with terminal wing. 

 (Classical Latin name of the Ash-tree.) 



Flowers dioecious; corolla none; leaflets mostly sessile, 2 in. long or more . 



• 1. F. Qregaha. 



Flowers mostly perfect; corolla present; leaflets mostly petiolate, less' than 

 2 in. long 2. F. ilipttala. 



L. F. Oregana Nutt. Oregon Ash. Tree IS to 30 ft. high in 

 our district; leaves G to 11 in. long; leaflets 5 to 7, oblong to oval, 

 acute, entire or somewhat serrate toward the apex, pubescent, espe- 

 cially beneath, glabrate in age, the lateral sessile or short-petiolulate, 

 2 to 5£ in. long; flowers dioecious; calyx of staminate flower very 

 short and truncate or almost none; stamens commonly 2, sometimes 

 3, rarely 1; calyx of pistillate flower with toothed lobes, shorter than 

 the ovary, persistent; ovary contracted into a stout style with 2 con- 

 spicuous stigmatic lobes; fruit oblong-lanceolate, \\ to 2 in. long; 

 body of fruit clavate, to 7 lines long, with edges margined from 

 near the base, widening above into a longer wing. 



Along the Sacramento River and Coast Range streams, especially 

 toward the coast: Stockton, Stmford; Napa Valley, Torrey; Cazadero, 

 Setrhell; Ross Valley, Jepson. Always in rich soil. Apr.-May. 

 Fruiting from .June to Now 



2. F. dipetala H. & A. Shrub, 5 to 12 ft. high; leaves 2 to 6 in. 

 long; leaflets 3 to 9, green above, yellowish green beneath when 

 young, oblong, coarsely serrate above the middle, mostly petiolulate, 

 £ to 1£ in. long; flowers mostly perfect; calyx less than a line long; 

 corolla white, 3 lines long, consisting of 2 distinct oval petals 

 abruptly narrowed at base into very short claws; stamens as long as 

 the corolla; filaments slender, shorter than the anthers; style slightly 

 lobed at apex; fruit linear- to spatulate-oblong, the terminal wing 

 frequently emarginate at apex. 



Canon sides, Coast Ranges: Yaca Mountains, Jepson. southward to 

 San Bernardino Co., Parish. 



84. CONVOLVULACE/E. Mqrning-gloky Family. 



Chiefly twining or prostrate herbs, or one species suflrutescent. 

 Leaves alternate, or the plants leafless and parasitical. Flowers 

 regular, perfect, o-merous (rarely 4-merous), except the pistil which 

 is commonly 2-merous. Sepals distinct, imbricated, persistent, often 

 unequal. Corolla usually showy, eampanulate. plaited in the bud. 



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