1 64 VIOLACEAE. 



Hypericum anagalloides nevadense Greene. Stems weak, erect or as- 

 cending, 8-15 cm. high; leaves pale and glaucous, ovate, obtuse, somewhat 

 clasping, 1 cm. or less long; cymes peduncled, loose, the branches elongated; 

 flowers small, not dotted, 6-8 mm. broad, dark yellow; sepals unequal, 

 lanceolate, acuminate, in fruit much longer than the capsule. Forming loose 

 mats in springy places; not common. 



Family 58. ELATINACEAE. WATERWORT FAMILY. 



Low annual marsh herbs; leaves opposite, not punctate, with 

 membranous stipules; flowers minute, axillary, regular, sym- 

 metrical; sepals 2-5, free; petals 2-5, hypogynous; stamens as 

 many or twice as many as the petals; ovary 2-5-celled, with a 

 many-ovuled axile placenta; fruit a capsule. 



Plants glabrous; flower parts 2-4. 232. ELATINE, 164. 



Plants pubescent; flower parts 5. 233. BERGIA, 164. 



232. ELATINE. 



Dwarf glabrous plants growing in or near the water, often 

 rooting at the nodes ; sepals 2-4, obtuse ; petals 2-4, hypogynous; 

 stamens as many or twice as many as the petals ; styles or sessile 

 stigmas 2-4; pod membranaceous, 2-4-celled, several-many- 

 seeded. 



Elatine calif ornica Gray. Plants small, 2-5 cm. high; leaves obovate or 

 spatulate, attenuate at base or the lowermost petioled; flowers white, on 

 short peduncles; petals 3 or 4 and stamens 6-8; seeds cylindrical, curved, marked 

 by 10-12 longitudinal lines and many transverse markings. In low wet 

 meadows near Spokane. 



233. BERGIA. 



Diffuse or ascending herbs, branching, often pubescent ; leaves 

 entire or serrate; flowers axillary, solitary or clustered; parts of 

 the flower in fives; sepals acute, with a prominent midrib; cap- 

 sule crustaceous, ovoid, 5-valved; seeds numerous. 



Bergia texana (Hook.) Seubert. Annual, branched from the base, 4-20 

 cm. high; stems erect or ascending, glandular-pubescent; leaves lanceolate, 

 obovate or spatulate, serrate, 1-2 cm. long, petioled; flowers in small axillary 

 fascicles; sepals acuminate, 3 mm. long, equalling the white or pinkish petals; 

 stamens 5 or 10. Sandy banks of Snake River at Almota, very rare. 



Family 59. VIOLACEAE. VIOLET FAMILY. 



Herbs with alternate or basal leaves, with stipules; flowers 

 perfect, axillary, nodding; sepals 5, hypogynous; corolla some- 

 what irregular, 1 -spurred, of 5 petals; stamens 5, hypogynous; 

 anthers adnate, united over the pistil; ovary 1 -celled, with 3 



