58 EOSACE^. 



6. SCHIZOJfOTUS, Rafinesque. Unarmed deciduous shrabs with 

 simple toothed or lobed extipulate leaves and terminal panicles of 

 numerous small white flowers. Calyx deeply 5-cleft, nearly rotate. 

 Petals 5, rounded, imbricate in bud. Stamens 20, inserted on an annular 

 peryginous disk. Pistils 5, wholly distinct, becoming 1-seeded hairy 

 carpels, alternate with the calyx-lobes, very tardily dehiscent by the 

 dorsal suture only, or indehiscent. 



1. S. discolor, Raf. Sylv. Tell. 152 (1838) ; Pursh, Fl. i. 342 (1814), 

 under Spinea ; Maxim. Adn. Spir. 1.50 (1879), under Holodiscus. Shrub 

 2 — 6 ft. high, the branches short, rigid, clothed with a gray more or less 

 broken and shreddy bark : leaves ovate, cuneately narrowed to a short 

 winged petiole, above the middle pinnately toothed or lobed, the lobes 

 when present entire, deep green and nearly glabrous above, whitish- 

 tomentose beneath ; panicles erect on short, erect or ascending branches ; 

 carpels more or less densely hirsute throughout. —On the eastward slope 

 of the Sierra, on dry rocky slopes and summits ; perhaps including the 

 Spirssa damosa, Nutt., of the Rocky Mountains. July. 



2. S. arisefolius, Greene. Smith in Rees' Cycl. xxxiii. (1819), under 

 Spirxa, also Lindl. Bot. Reg. t. 1365 (1830). Commonly 8—18 ft. high 

 with long spreading or recurved slender branches, these and the stem 

 clothed with a smooth unbroken dark brown bark : leaves short-petioled, 

 deltoid-ovate, 2 — 3 in. long, two-thirds as broad at the almost truncate 

 base, pinnately shallow-lobed from base to apex, the lobes entire or 

 toothed, green and glabrate above, slightly paler beneath with sparse 

 villous-appressed pubescence : panicle ample, 6 — 10 in. long, drooping 

 in fl., erect in fr. : carpels compressed, hirsttte along both sutiires, the 

 sides glabrous and covered with sessile globular resin-dots. — Woods of 

 the Coast Range, near the sea-level or at low elevations among the hills. 

 One of the most beautiful of shrubs when laden in June with its creamy- 

 white half-pendulous panicles. In Marin Co. it often attains the height 

 of 20 feet or more. 



7. CERCOCARPUS, HamhokU, Bonpland & Kunth (Mountain 

 Mahogany). Unarmed evergreen shrubs or trees with simple leaves, 

 small stipules, and axillary solitary or fascicled apetalous flowers. Calyx 

 salverform, the 5-lobed limb deciduous. Stamens oo , in 2 or 3 rows on 

 the limb of the calyx. Pistil 1 ; style terminal ; stigma terminal ; ovule 

 solitary, ascending. Fruit a terete villous achene surmounted by a long 

 villous twisted style. Seed linear ; albumen 0. 



1. C. ledifolius, Nutt. in Hook. Ic. t. 324, and T. & G. Fl. i. 427 (1840). 



Arborescent, 10—30 ft. high : leaves thick-coriaceous, narrowly lanceo- 

 late, entire, more or less revolute, the midvein alone prominent, glabrous 

 above, pubescent beneath, 1 — 1^4 ii- long, very short-petioled : persistent 



