OCTANDBIA MONOGYNIA. 



EPILOBIUM. Calyx-tube not longer than the ovary ; limb 4-parted, 

 caducous. Anthers sub-ovate, erect; pollen not viscid. Capsule 

 long, linear, 4-sided. Seeds comose. OBD. XXXVIII. ONAGBACEAE. 

 p. 87. 



OENOTHEBA. Calyx-tube longer than the ovary ; limb reflexed, 

 the segments partially cohering. Anthers linear, incumbent ; pollen 

 viscid. Capsule oblong, or clavate. Seeds not comose. OBD. 

 XXXVIII. ONAGBACEAE. p. 88. 



GAUBA. Calyx-tube much longer than the ovary. Petals some- 

 what on one side, clawed. Capsule ovoid, ribbed, bony or nut-like, 

 indehiscent, 1- or few-seeded. OBD. XXXVIII. ONAGBACEAE.^. 89. 

 [Vaccinium macrocarpon. ORD. LIV. ERICACEAE, p. 167.] 



b. Ovary superior, f Flowers perfect. 



RHEXIA. Calyx-tube urceolate ; limb 4-cleft. Petals 4. Anthers 

 long, curved, declinate. Capsule 4-celled. Seeds numerous, cochleate. 

 OBD. XXXVI. MELASTOMACEAE. p. 86. 



TBOPAEOLTJM. Calyx colored, 5-parted ; the upper segment spurred 

 at base. Petals 5, unequal, the upper 2 sessile, the others clawed. 

 Fruit 3 connate carpels, fleshy, or finally subcoriaceous, each 1- 

 seeded. OBD. XXIV. TBOPAEOLACEAE. p. 41. 



DIBCA. Calyx colored, tubular, truncate, the limb obscurely 

 toothed. Corolla none. Fruit a drupe-like Berry, 1-seeded. OBD. 

 LXXXI. THYMELEACEAE. p. 252. 



ft Flowers mostly polygamous. 



DIOSPYBOS. Dioicously polygamous: Calyx mostly 4-parted. 

 Corolla urceolate, usually 4-lobed. Stamens (in the sterile flowers) 

 16. Berry globular, large, subtended by the persistent calyx, 4- 

 to 8-seeded. OBD. LVI. EBENACEAE. p. 176. 



ACEB. Monoicously, or dioicously polygamous: Calyx 5-parted. 

 Petals 5, or none. Stamens 5, to 8 or 9. Samaras in pairs, diverg- 

 ing and separable, each 1-seeded. OBD. XXVIII. ACEBACEAE. p. 44. 



NEGUNDO. Dioicous : Calyx 5-cleft. Petals none. Stamens mostly 

 6. Fruit as in Acer. OBD. XXVIII. ACEBACEAE. p. 46. 



[Polanisia. ORD. XI. CAPPARIDACEAE. p. 24.] 

 [Hypopitjs lanuginosa. Ord. LIV. ERICACEAE, p. 174.] 

 [Trientalis Americana. ORD. LVIII. PRIMULACEAE. p. 178.] 



Order 2. Digynia. 



[Chrysosplenium, and Hydrangea. ORD. XLII. SAXIFRAGACEAE. p. 97.] 

 [Ulmus Americana. ORD. LXXXV. ULMACEAE. p. 255.] 



Order 3* Trigynia. 



POLYGONUM. Calyx mostly 5-parted, often colored, persistent, 

 embracing the fruit. Corolla none. Akene lenticular, or triquet- 

 rous, according as the styles are 2, or 3. OBD. LXXIX. POLYGON- 

 ACEAE. p. 245. 



