ONAGRACEJE. (EVENING-PRIMROSE FAMILY.) 137 
3. TERMINALIA, L. 
Flowers in spikes, often polygamous. Limb of the calyx deciduous, bell- 
shaped, 5-cleft, with the lobes acute. Petals none. Stamens 10, in 2 rows, 
longer than the calyx. Ovary 2-3-ovuled. Style filiform. Drupe dry and 
indehiscent, l-seeded. Seed almond-like. Cotyledons spirally convolute. — 
Trees or shrubs, with mostly alternate leaves, which are crowded at the summit 
of the branches. 
1. T. Catappa, L. Leaves short-petioled, softly pubescent when young, 
at length smoothish, obovate, wedge-shaped but truncated or slightly cordate at 
the base, with a depressed gland on each side of the midrib near the base ; spikes 
very slender, shorter than the leaves, the upper flowers sterile, drupe ovate, acute, 
compressed, with the margins somewhat winged. — South Florida. — A large tree. 
Leaves 4'-8'long. Flowers minute, pale green. 
ORDER 55. ONAGRACEZ. (EvENING-PRIMROSE FaurLY.) 
Calyx adherent to the ovary, and often produced into a tube beyond it, 
2— 6-lobed, valvate in the bud. Petals as many as the lobes of the calyx, 
inserted into its throat, convolute in the bud, sometimes wanting. Stamens 
as many or twice as many, inserted with the petals. Ovary 2- 4-celled. 
Placenta central. Style solitary: stigma capitate or 2—4-lobed. Cap- 
sule loculicidally dehiscent or indehiscent. Seeds anatropous, with little 
or no albumen. — Chiefly herbs. 
Sunorver I. ONAGRACEZ. Styles slender. Fruit 4-valved 
(indehiscent in Gaura). Seeds attached to a central placenta, without 
albumen. 
* Calyx-tube produced beyond the ovary. 
1, GAURA. Capsule nut-like, indehiscent, 1- 4-seeded. 
2. (ENOTHERA. Capsule 4-valved, many-seeded. 
* * Calyx-tube not produced beyond the ovary. 
8. EPILOBIUM. Stamens 8. Petals 4. Seeds comose. 
4. JUSSLIEA. Stamens 8-12. Petals 4-6. Capsule long. Seeds naked. i" 
5. LUDWIGIA. Stamens 4. Petals 4, or none. Capsuleshort,many-seded. — 
6. CIRCHA. Stamens2. Capsule obovate, 1- 2-seeded. ius 
ScBonpER IL HALORAGEUE. Styles very short or none. Fruit 
indehiscent. Seeds suspended, solitary in each cell. Albumen thin. — 
Flowers minute, axillary. 
7. PROSERPINACA. Flowers perfect. Stamens 3. Heer. 3-angled. 
& = EUN. Flowers moncecious. Stamens 4-8 Capsule 4-angled. 
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