Lauraceae 157 



1. B. dictyota Jepson. Shrub, 4-12 dm. high, rather sparsely 



leafy ; leaflets 5-7, glaucescent on the upper surface, somewhat 

 paler beneath and prominently reticulate-veiny, strongly undu- 

 late, the margins spinose-dentate, the teeth few and rather 

 remote; racemes terminal, clustered, 2-5 cm. long; berries blue- 

 Mack, with bloom. 



Occasional on dry ridges. Near Glendale, Davidson; Switzer's trail, San 

 Gabriel Mountains. 



l\ B. Nevinii Gray. Shrub 2-3 m. high; leaflets pale, lanceo- 

 late or oblong-lanceolate, often acuminate, teeth not remote, 

 spinulose-serrate, 1-2.5 cm. long; racemes loosely 5-7 flowered, 

 equaling or surpassing the leaves; pedicels slender. 



Fernando, where it was first collected by Nevin. 



Family 33. LAURACEAE. Laurel Family. 



Aromatic trees or shrubs with alternate entire minute- 

 ly punctate exstipulate leaves and perfect or unisexual 

 yellow or greenish flowers, in panicles or racemes. 

 ('alvx 4-6-parted, segments imbricated in 2 series. Co- 

 rolla none. Stamens in 3-4 series, some of them often 

 imperfect; anthers 2— 1-celled, opening by valves. 

 Ovary superior, free from the calyx, 1-celled ; ovule sol- 

 itary, anatropous, pendulose ; style 1 ; stigma 1. Fruit 

 a 1-seeded drupe. 



1. UMBELLULARIA Xutt. California Laurel or Bay Tree. 



Trees with thick evergreen petioled leaves and perfect 

 flowers, borne in terminal or axillary pedunculate umbels, 

 which are included before expansion in an involucre 

 consisting of 4 broad deciduous bracts. Calyx 6-parted, 

 deciduous. Stamens 9, inserted on the throat in 3 rows, 

 the 3 inner with a fleshy 2-lobed stipitate gland at the 

 base, alternating with 3 ligulate staminodia ; anthers 4, 

 4-valved, the outer introrse, the inner extrorse. The 

 stigma dilated, somewhat lobed. Drupe subglobose or 

 ovoid, subtended by the thickened base of the calyx. 



