326 



ONAGRACEiE. 



alternate. Flowers yellow, solitary in the axils, pediceled. Calyx- 

 tube elongated, not produced beyond the ovary, its lobes 5. Petals 

 5. Stamens twice as many. Fruit (in ours) 5-celled. Seeds very 

 numerous. (Bernard de Jussieu, who founded the natural system of 

 classification.) 



1. J. Californica. California "Water-weed. Stems H to u 

 ft. long; leaves of floating plants orbicular to elliptic, nearly 1 to 1£ 

 in. long, on petioles almost as long; leaves of erect plants of muddy 

 shores broadly oblong, acute at base and apex, or obovate, 1 to 2 in. 

 long, the petioles £ in. long; calyx-lobes lanceolate, J in. long; petals 

 broadly obovate, 6 to 7 lines long; fruit woody, cylindric, 10 lines 

 long, indehiscent, at length reflexed. and the calyx-segments decidu- 

 ous from the mature fruit; fruiting pedicel £ to f in. long; seeds large 

 for the order, with a very thick tough outer coat; cotyledons elliptic, 

 caulicle very short. 



Region of the Lower Sacramento and the Lower San Joaquin, par- 

 ticularly in tide sloughs; Cache Creek, Bolander; Clear Lake, Jepson; 

 Warm Springs, Alameda Co.; lakelet near Aptos, Santa Cruz 

 Co., Setchetl; Pajaro, Monterey Co., Chandler] Visalia; Bakersfield. 

 July-Sept. 



2. LUDWIGIA L. False Loose-strife. 

 Aquatic or marsh perennial herbs, with the aspect of the preceding, 

 but the leaves opposite, parts of the flower in 4 : s, and the petals often 

 absent. Stamens as many as the petals and alternate with them. 

 Ovary broad at apex and usually flattened, or crowned with a conical 

 style-base. Capsule 4-celled, dehiscent by laterai slits or terminal 

 pores. Seeds-minute. (C. G-. Ludwig, 1709-1773, Professor of Botany 

 at Leipsic.) 



1. L. palustris Ell. Water Purslane. Glabrous, stem 6 to 

 12 in. long; leaves obovate, acute or acuminate, narrowed at base into 

 a rather long petiole, the whole leaf 8 to 12 lines long; petals none, 

 or minute and reddish; capsule erect, broadly oblong, \\ lines long, 

 more or less 4-sided or -angled, with a narrow longitudinal band of 

 tubercles on each side. 



Muddy shores: Healdsburg, Miss King; Clear Lake, Jepson. Aug. 

 Ft. Sept. Capsule yellowish, the persistent sepals green. 



3. ZAUSCHNERIA Presl. 

 Low perennials, with alternate leaves (the lowest opposite) and 

 large scarlet Fuchsia-like flowers. Calyx above the ovary colored 

 like the corolla, its tube funnelform with a globose base (nectar- 

 bearing within), and appendaged within at the most constricted por- 

 tion with several erect and deflexed scales. Petals scarlet, inserted 

 on the throat of the calyx and rather shorter than its erect lobes, 

 obcordate or 2-cleft. Stamens 8, exserted, colored like the corolla; 

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

 exserted, stigma 4-lobed. Capsule linear, obtusely 4-angled, 4-valved 

 and imperfectly 4-celled. Seeds oblong, with a tuft of hairs at the 



