ARISTOLOCHIACEaC. 237 



than twice as large, equally spinescent, 4-celled, 14-seeded ; 12 of the 

 seeds arranged imbricately in the cells, the other two lying horizontally 

 across the base of the fruit, both attached to the same side. — Southern, 

 probably occurring north of Santa Barbara. 



* * Leaves hruader than long; corollas campanidale. 



3. M. Marali, Greene, 1. c; Wats. Proc. Am. Acad. 1. c, under Echi- 

 nocysiis. Marah inuncala, Kell. Proc. Calif. Acad. i. 88 (1854). Herbage 

 more or less scabrous, rather succulent : stems 3 — 30 ft. long : leaves 

 reniform or round-cordate, 3 — 6 in. broad, more pedately lobed than in 

 the last : racemes of sterile flowers ^-^ — 1 ft. long ; corolla }^ in. long or 

 more, campanulate, clear white : fertile fl. with abortive stamens ; pedicel 

 slender, 2—6 lines long : ovary oblong-ovate, acuminate, more or less 

 clothed with soft spines, 2 — 3-celled ; ovules 1 — 4 in each cell, ascending 

 or horizontal, attached to the outer side of the cell : fr. ovate-oblong, 

 4 in. long, attenxiate at each end, more or less muricate with short weak 

 spines : seeds horizontally placed, somewhat elliptical or nearly orbicular, 

 compressed, 1 in. long and about half as thick. — Shady banks, or open 

 northward slopes, trailing or high-climbing ; common about Mt. Tamal- 

 pais, also in Alameda and Contra Costa counties among the hills. 



4. 31. Watsonii, Greene, 1. c; Cogn. in DO. Monogr. Phaner. iii. 819 

 (1881), under Echinocyslis. E. muricala, Kell. Proc. Calif. Acad. i. 57 

 (1854). Megarrhiza muricala, Wats. Slender, not succtilent, glaucous, 

 somewhat scabrous : stems 6 — 8 ft. long : leaves broad-reniform, 5 — 7- 

 lobed, 2—4 in. broad, the lobes broader above and sharply sinuate-toothed 

 or -lobed : sterile racemes few-flowered ; fl. small, white : fertile fl. 

 without abortive stamens, on slender pedicels 1 — 2 in. long ; ovary glab- 

 rous or muricate : fr. nearly globose, 1 in. thick or somewhat larger, 

 naked or with a few weak spines near the base, 2-celled, 2 — 4-seeded : 

 seed nearly globose, }4 ^^- thick, attached to the outer side of the cell, 

 marginless or nearly so. — Foothills on both sides of the interior valley, 

 from Calaveras Co. to the Marysville Buttes. Mar. — May. 



Order XXXVI. ARISTOLOCHIACE/E. 

 Lindley, Introd. to Nat. Syst. 2d ed. 205 ( 1836). Aristolochi^, Adans. 



Shrubs or perennial herbs, with alternate entire mostly cordate or 

 reniform exstipulate leaves, and solitary apetalous perfect flowers. Peri- 

 anth lurid-purple or greenish, with a valvate regularly or irregularly 

 3-lobed limb ; the tube more or less adnate to a 6-celled ovary, which 

 becomes a 6-valved capsule, or a berry. Stamens 6 — 12, on the ovary, 

 and more or less adnate to the style ; anthers extrorse. Styles usually 

 6, united at the base. Seeds in 1 or 2 rows in each cell. 



