OP THE GENERA. xlvii 



CLASS VIIL— 0CTANDRIA.-8 SUimens. 

 Order I.-M0N0GYJ^IA.~1 Pistil 



* Flowers complete, superior. 



Rhexia. Calyx with the tube ventricose-ovoid at base, narrowed at the * 

 apex ; the limb 4-cleft. Petals 4, obovate. Capsule free in the calyx, 4- 

 celled. Seeds cochleate. Melastomacea^^.m. 



CEnothera. Calyx with a long 4-sided or 8-ribbed deciduous tube ; seg- 

 ments 4, reflexed. Petals 4, equal. Capsule 4-valved, with many naked 

 seeds. Onagracea, p. 108. 



Gaura. Calyx tubular, adnate to the ovary at base; segments 4, re- 

 flexed ; tube deciduous. Petals mostly 4-clawed, somewhat unequal. Fruit 

 4-angled, dry and indehiscent, by abortion mostly 1-celled, 1 — 4-seeded. 

 Seeds naked. OnagracecB, p. 108. 



Epilobium. Calyx with a long 4-sided tube ; limb 4-parted, deciduous. 

 Petals 4. Capsule linear, obtusely 4-sided, 4-celled, 4-valved, many-seeded. 

 Seeds crowned with a tuft of hairs. Onagracecz, p. 107. 



OxYCOccus. Calyx adnate to the ovary, with the limb 4-cleft. Corolla 

 4-parted, with the segments somewhat Unear and revolute. Filaments con- 

 nivent. Anthers tubular, 2-parted. Berry 4-celled, many-seeded. Vac- 

 ciniacece, p. 223. 



Phalerocarpus. Calyx bi-bracteate, adhering to the ovary ; the hmb 

 4-parted. Corolla short-campanulate, 4-cleft. Filaments short and dilated. 

 Anthers awnless. Berry globose-ovoid, crowned by the teeth of the calyx, 

 4-celled, white. Vacciniacece, p. 223. 



** Mowers complete, inferior. 



Menziesia. Calyx campanulate, 4-cleft or 4-toothed. Corolla tubular 

 or globose; limb very short, 4-toothed, revolute. Filaments subulate, 

 smooth. Capsule 4-celled, 4-valved. Ericacece, p. 216. 



Acer. Flowers mostly polygamous. Calyx 5-lobed, sometimes 5-parted. 

 Samarae 2, winged, united at base, by abortion 1-seeded. Aceracece, p. 60. 



Dirca. Perianth colored, tubular-campanulate ; limb obsolete, erosely 

 toothed. Stamens unequal. Berry 1-seeded. ThymelacecB, p. 307. 



Jeffersonia. Sepals 4, petaloid. Petals 8, oblong. Capsule obovate, 

 semicircularly dehiscent. Seeds many, arillate at base. Berberidacccs, 

 p. 17. 



*** Flowers incomplete. 



{Monotropa in CLASS X.) 



Order II.— DIGYNIA.~2 Pistils. 



{Polygonum in Order TRIGYNIA. Vaccinium, Chrysosplenium and 

 Scleranthus, in CLASS X.) 



Order III.— TRIGYNIA.— 3 Pistils. 



Polygonum. Perianth mostly 5-parted, petaloid, persistent. Fruit a 

 1-seeded compressed or triquetrous nut. Polygonacece, p. 301. 



