KUAMXACE.K. 253 



immersed in or surrounded by the disk; ovules 2 in each cell; styles 

 united into one, or none; stigma 3 to 5-lobed. Fruit ii loculicidal 

 capsule, free from the ciilyx. Seed ariled, with large embryo and 

 broad and thin cotyledons; endosperm fleshy. 



1. EUONYMUS L. Buehinq Btjsh. 



Leaves opposite, petioled, deciduous. Flowers (in ours) 5-merous, 

 pui-plish, in cymes on axillary peduncles. Petals inserted beneath 

 the 5-lobed disk. Stamens inserted on the disk. Stj'le short or none. 

 Capsule 3 to 5-celled, 3 to 5-lobed, the cells 1 to 2-seeded. Seeds 

 covered with a fleshy red aril. 



1. E. occidentalis Nutt. BuRjfiNO Bush. Erect, slender, 6 to 

 14 ft. high, the branches 4-ansjled; leaves thin, ovate or often broad- 

 est above the middle and abruptly acuminate, serrulate, IJ to 4 in. 

 lonif, on petioles 3 lines long; peduncles 1 to IJ in. li'ng, 3 to 

 5-flowered; flowers 4 or 5 lines broad; calyx-lobes broad and obtu-^e; 

 petals roundish, brownish purple, finely dotted and with scarious 

 margins; capt-ule depressed, smooth, deeply 3-lobed, often f in. broad. 



Near the coast: Santa Cruz Mountains, McLean, 1873; ilarinCo.; 

 Howards, Sonoma Co., J. J. Rivers; norlhwai-d to Humboldt Co., 

 Marshall. June. 



Pachtstima Myrsinites Eaf. Evergreen undershrub with cori- 

 aceous leaves i to 1 in. long; flowere 1 line wide; ovary 2-celled.— 

 Yuba Co. to Mt. Shasta. 



55. RHAMNACE/E. Buckthorn Family. 



Shrubs or small trees with simple leaves and mostly caducous 

 stipules. Flowers small, regular. Stamens and petals 4 or 5, the 

 lobes of the calyx as many. Petals perigynous, inserted with the 

 stamens on a disk lining the calyx-tube, sometimes wanting, com- 

 monly clawed. Stamens alternate with the lobes of the calyx, that 

 is, opposite the petals. Ovary mostly 3 (2 to 4)-celled, free oradnate 

 by the disk to the base of the calyx. Style simple or 3 (2 to 4)-eleft. 

 Fruit a berry or capsule. 



Calyx free from the ovary; petals small or none, not hooded; fruit fleshy, 

 berry-like 1- Rhamntjs. 



Calyx adn&te to base of ovary; petals hooded by inflexion of the tip; fruit 

 dry, capsular ... ... . . .2. CEANOXHrs. 



1. RHAMNUS L. Buckthorn. 

 Shrubs with alternate leaves and small greenish perfect or polyga- 

 mous flowers in axillary clusters. Calyx with 4 or 5 short sepals or 

 teeth. Petals very small or none; claws short. Stamens 4 or 5; 

 filaments short. Ovary ovoid, free; style short, 3 to 4-cleft. Fruit 

 berry-like, black, containing 2 to 4 sepaiate seed-like nutlets of bony 

 or cartilaginous texture. (The ancient Greek name of these plants.) 



Flowers complete; fruit black. 



Leaves thickish, mostly 1 to 2 in. long . . . . 1. iS. Caiifornica. 



Leaves thinnish, S to 6 in. long . 2. Jf. Purshiana. 



Flowers apetalous, often polygamous; fruit red . . .S.H. croeia. 



