242 ONAGRACEAE. 



1* J. californica (Wats.) Jepson. Perennial; stems stout, 3-12 

 dm. long, floating or nearly prostrate on mud; leaves obovate to 

 obovate-oblong, or on the floating stems sometimes lanceolate, 

 obtuse or acute, 2.5-6 cm. long, on petioles 1-2.5 mm. long; stipules 

 gland-like or somewhat scale-like; flowers 12-16 mm. broad, deep 

 yellow; the petals obtuse; fruit 2.5 cm. long, spongy, indehiscent; 

 pedicel 1 cm. long or more. (/. repens californica Wats.; Ludwigia 

 diffusa californica Greene.) 



In stagnant water or muddy bottoms, in marshes toward the 

 coast. Cienega; Mesmer; Alamitos. 



2. ZAUSCHNERIA Presl. 



Perennial herbs or somewhat suffrutescent plants, 

 spreading by subterranean shoots. Leaves opposite, 

 except those of the floral branches. Flowers racemose 

 along the leafy branches, large, scarlet. Calyx-tube 

 globose, inflated just above the ovary, then becoming 

 funnelform, 4-lobed, bearing 8 small scales within at the 

 upper end of the short proper tube, 4 erect and 4 reflexed. 

 Petals 4, little exceeding the calyx-lobes, obcordate or 

 deeply cleft. Stamens 8, the 4 alternate with the petals 

 iuvserted lower down and appearing shorter; anthers 

 linear-oblong, attached by the middle. Style long, 

 exserted; stigma peltate or capitate, 4-lobed. Capsule 

 slender fusiform, obtusely 4-angled, 4-valved, many- 

 seeded. Seeds small, comose. 



1. Z. californica microphylla Gray. Stems tufted, 5-10 dm. 

 high, somewhat woody at base; herbage canescent with dense firm 

 tomentum; leaves many, fascicled, narrowly linear, somewhat 

 mucronate; flowers usually somewhat fascicled, 1-2 terminating 

 the branchlets; calyx narrowly funnelform, 3 cm. long, its lobes 

 lanceolate, about 1 cm. long; petals slightly exceeding the calyx- 

 lobes, rather deeply 2-lobed, narrowed toward the base, the lobes 

 rounded at apex; stamens about equaling the petals. 



Frequent on dry hillsides in the foothills, mostly below 3000 feet. 



2. Z. californica latifolia Hook. Stems herbaceous, 3-6 dm. 

 high; herbage somewhat canescent; leaves ovate-lanceolate, nearly 

 smooth. 



This subspecies is common in the coniferous belt of the San 

 Gabriel and San Bernardino Mountains. 



3. EPILOBIUM L. Willow-herb. 



Herbs or sometimes shrubby plants with alternate or 

 opposite leaves, and axillary or terminal solitary or 

 racemose flowers. Calyx-tube linear, produced beyond 

 the ovary, the limb 4-parted, deciduous. Petals 4, 



