lU-TACE.K. 249 



crested, enclosing- tlie stimiens and style. Stamens 8, monadelphous, 

 the tube open on one side and adnate "to the base of the petals. Ovary 

 2-collt-d with one ovule in each cell; style long, curved. Capsule 

 with thin walls, flattened contrary to the partition, rounded and 

 often notched above, dehiscing luculiiidally at the margin. Seeds 

 with a conspicuous caruncle. (Polus, much, and gala, milk, an 

 ancient Greek name for some shrub used as a stimulant.) 



1. P. Californica Nutt. Stems many from the branching crown 

 of a cord-like deeply descending perennial root, mostly simple, 3 to 8 

 in. high; leaves oblong- or elliptic-ovate, J to IJ in. long, distinctly 

 petioled; flowers of two sort*: — those near the root apetalous and 

 deveh>ping most of the fruit; those of the terminal racemes with rose- 

 purple corolla 5 or 6 lines long, the petals more or less pubescent, at 

 least inside or on the margin, the sepals glabrous, with the shorter 

 ones 2 to 3 lines long; capsule broadly elliptical, glabrous, 3 lines 

 long; caruncle of the seed wrinkled and" bladdery. 



Wooded or brush-covered slopes in the mountains from Ukiah, 

 Howell ilountain, and Marin Co. southward to Santa Barbara. Not 

 repiirted from theinner Coast Ranges. May. 



P. CORXUTA Kell. of the Sierra Nevada, may be distinguished by- 

 its greenish whit; flowers and densely tomentose sepals. 



50. RUTACE/E. Rite F.^mily. 



Herbaceous oi- arboreus plants, cure shrubs or small trees, with 

 glandular-dotted or aromatic leaves and no .stipules. Flowei-s regular 

 and symmetrical, or nearly symmetrical. Sepals and petals 4 or 5. 

 Stamens as many or twice as many, inserted outside of a hypogynous 

 disk encircling the base of the ovary. 



1. PTELEA L. 



Shrubs or small trees. Leases pinnately trifoliolat*, with sessile 

 leaflets. Flowers small, greenish white, in axillary paniculate cymes. 

 Flowere polj-gamous. Sepals, petals, and stamens 4 or 5. Ovary 

 with a short thick stipe, 2-celled; cells 2-ovuled, the lower ovule 

 abortive; style short; stigmas 2. Fruit a 2-celled 2-seeded samara, 

 winged all around, broadly orbicular. Seeds oblong. (Greek name 

 of the Elm, the fruit of which is very similar.) 



1. P. Baldwinii T. & G. var. crenuiata. Hop Tkee. Small tree 

 8 to lo ft. high; glabrous or with a slight pubescence on the inflores- 

 cence and under surface of the leave.*; leaves elliptic, obovate or 

 «longated-rhomboidal, rounded or acute at apex, often with abruptly 

 cuneate base, crenulate or almost entire, 1 to 2J in. long; buds 

 downy; sepals very small; petals 2i lines long; stamens hairy tf'wards 

 the base; fruit 5 to 6 lines long, a trifle broader, tipped by the per- 

 sistent style. — (P. crenuiata Greene.) 



Coast Ranges, not infrequent in certain localities, but probably of 

 restricted range.: Mt. Diablo, abundant in Mitchell Canon, the wing 

 emarginate at apex; Antioch, the wing abruptly acuminate at apex; 



