PRIMROSE FAMILY 655 



below into petioles; scape slender, 1-2 dm. high, purplish above, glabrous, 3-12- 

 flowered; calyx-tube about 2 mm. long; lobes lanceolate, 3 mm. long; corolla 

 lilac-purple, with yellowish throat, often with a wavy puri>le line; lobes oblong, 

 obtuse or acutish; anthers purple, often with whitish margins, acutish; capsule 

 oblong, about 8 mm. long. Saline flats: Sask. — N.D.— Utah — Ida, Sub?nonL 

 — MoriL My-Jl. 



16. D. puberulentum Heller. Leaves 3-8 cm. long; blades oblanceolate 

 or spatulate, glabrous, entire-margined, obtuse, contracted below into short 

 petioles; scape 1-2 dm. high, puberulcnt above; calyx-tube 2 mm. long; lobes 

 lanceolate, acute; corolla purphsh, with the throat yellowish; lobes oblong, 8-10 

 mm. long; capsule about 8 mm. long. Wet places: Ida. Subniont. Ap. 



17. D. Cusickii Greene. Leaves 3-7 cm. long, puberulcnt; blades oblance- 

 olate or oblong or rarely obovate, obtuse, rounded or acutish at the apex, con- 

 tracted below into winged petioles; scape 1-3 dm. high, ])uberulent; calyx-tube 

 2-3 mm. long; lobes lanceolate, acuminate; corolla purple, with a yellow throat; 

 lobes oblong or elliptic, acutish, about 1 cm. long; anthers 3-5 mm. long, acute; 

 capsule cyhndric, about 8 mm. long. D. Meadia puberulum Nutt. Grassy 

 slopes : B.C. — Wash. — Mont. — Alta. Submoni. Ap-My. 



18. D. uniflorum Rydb. Leaves spatulate or oblanceolate, almost sessile, 

 densely puberulent, 1-2 cm. long, obtuse or acutish; scape 5 cm. or less; calyx- 

 lobes linear-lanceolate, 2-3 mm. long; corolla dark bluish purple, with a yellow 

 throat, which has or has not a dark wavy line; lobes oblong, about 1 cm. long; 

 anthers 3 mm. long, dark purplish blue, with yellowish sides; capsule cylindric, 6-10 

 mm. long, sphtting into valves. Mountain sides : Mont. MonL — Subalp. Je-JL 



13. SAMOLUS (Tourn.) L. Water Pimpernel, Brookweed. 



Annual or perennial, caulescent herbs. Leaves alternate, entire. Flowers 

 in terminal racemes or panicles. Sepals united at the base, persistent. Hy- 

 panthium more or less developed. Corolla perig\mous, short-salverform; tube 

 very short; lobes rounded, imbricate. Stamens 5, adnate to the corolla-tube; 

 staminodia sometimes present, narrow; anthers cordate. Ovary 1-celIed; stigma 

 capitate. Ovules numerous, half-anatropous. Capsule short, 5-valved at the 

 apex. Seeds niunerous. 



1. S. floribundus H.B.K. Stem 1-6 dm. high; leaves few, spatulate, or 

 oval, obtuse, 3-15 cm. long, narrowed into winged petioles; upper stem-leaves 

 subsessile and ovate; sepals ovate or triangular; cofolla white, 3 mm. broad; 

 staminodia 5, at the sinuses of the corolla. Wet places: Newf. — Fla. — Calif.— 

 B.C.; Mex. Plain, Je-Au. 



Family 101. OLEAGEAE. Olive Family. 



Shrubs or trees, rarely herbs. Leaves opposite, exceptionally alternate or 

 whorled, without stipules, simple or piunately compound. Flowers mostly 

 paniculate, perfect, polygamous, or dioecious, regular, complete or incom- 

 plete. Sepals usually 4, partially united, rarely wanting. Petals 2-6, dis- 

 tinct or partially united, narrow, imbricate or valvate, or wanting. Sta- 

 mens 2 or 4, adnate to the base of the corolla, if the latter is present. Gyn- 

 occium of 2 united carpels: ovary 2-celled, free; stigmas capitate or 2-lobed. 

 Fruit a loculicidal, 2-valved capsule, a samara, or a berry. Seeds usually 

 solitary, sometimes 2-4, 



Fruit indehiscent ; plant dioecious or polygamous ; corolla in ours wanting ; calyx-lobes 4. 



Fruit a samara. 1. Fkaxinxjs. 



Fruit a drupe. 2. Fohestiera. 



Fruit a dehiscent, didymous capsule; flowers perfect; coroUa present, rotate, 5-lobed; 



calj-x 5-15-lobed. 3. Menodor-\. 



1. FRAXINUS (Tourn.) L. Ash. 



Trees or shrubs. Leaves opposite, usually odd-pinnate, rarely simple. 

 Flowers inconspicuous, polygamous or dioecious, usually in panicles. Calyx small, 



