FAM. 129. 101 



or partly so, 2-5 celled; styles united; fruit a leathery berry 

 crowned with the calyx. 



Evergreen shrubs or trees with opposite, entire leaves; stipules caducous; 

 flowers cream-colored or yellow in peduncled clusters of 2- several; 

 sepals and petals 4; stamens 4-12; ovary 2-celled, half inferior; 

 stigma 2-lobed; ovules 2 in each locule. - Rhizophora 



R. Mangle, Mangrove. Forms thickets on salt or brackish shores; 

 leaves elliptic to elliptic-obovate, with a conspicuous midvein; 

 flowers pale- yellow. 



129. Epilobiaceae (Onagraceae), Evening-primrose Family. 



Herbs, rarely shrubs, with alternate or opposite, ex- 

 stipulate, simple leaves; flowers usually perfect, often 

 with an elongated calyx-tube; calyx 2-6 lobed, petals 2-9; 

 both calyx and corolla usually in 4's or the latter some- 

 times wanting; stamens as many, or twice as many as the 

 petals; ovary 1-6, usually 4-celled, inferior; style 1, stigma 

 capitate or lobed; fruit a capsule, sometimes nut-like; seeds 

 sometimes appendaged. 



1. Fruit a dehiscent capsule, --------- 2 



1. Fruit nut-like, indehiscent; — herbs with alternate leaves; flowers in 



terminal spikes or racemes; calyx-tube prolonged, the limb 3-4 

 lobed; petals 3-4, unequal; stamens 6-S; stigma 4-lobed, sur- 

 rounded by a cup-like border; fruit 1-4 seeded. _ _ _ Gaura 



G. angustifolia. Stem simple or sparingly branched, pubescent; leaves spatu- 

 late to linear, often blotched with purple; petals white or pink; fruit 4-angled. 

 Sandy soil. Summer. 



2. Calyx-tube not prolonged beyond the ovary, ------ 3 



2. Calyx-tube prolonged beyond the ovary, ------- 5 



3. Stamens 4 in 1 row, ---------- 4 



3. Stamens 8-12 in 2 rows; — marsh-herbs or shrubby plants with alter- 



nate leaves; flowers axillary; calyx 4-6 lobed; petals 4-G, white 



or yellow; ovary 4-6 celled, __-_._ Jussiaea 



J. leptocarpa. Stem erect, branched, bristly-hirsute; leaves lanceolate, nearly 



sessile, hairy; calyx-lobes mostly 6, as long as the petals, corolla yellow. 



Marshes. Summer. 

 J. scabra. Stem often woody, hirsute; leaves ovate to obovate, pubescent; 



calyx 4-lobed shorter than the petals, corolla yellow. Moist soil. Spring 



to Fall. 

 J. grandiflora. Stem decumbent, villous; lower leaves spatulate, the others 



lanceolate or elliptic; calyx 5-lobed; petals suborbicular, yellow. Ponds. 



Summer and Fall. 



4. Stems creeping or floating; leaves opposite; — succulent herbs with 



small, axillary, sessile flowers; calyx-tube 4-lobed; stamens very 

 short; style almost wanting. Late Spring and Summer. 



Isnardia Ludwigia , Marsh Purslane 

 I. (L.) spathulata. Hairy'; flowers without corolla. Around pine-land ponds. 



