SYNOPSIS OF GENERA. XXXIX 



scutelliform, lobed. Anth. opening transversely, terminated by a 

 membrane. Pollinia (masses of pollen) 5-pairs, not separated into 

 grains. Stiff, depressed. Follicles 2, ventricose. Asdepiadece , p. 237. 



ASCLEPIAS. CaL small, 5-parted. Cor. 5^-parted, mostly reflexed. 

 Stamineal crown 5-leaved, concave, erect with a subulate process at the 

 base of each. Stig. with 5 angles, opening by longitudinal chinks. 

 Pollinia 5 distinct pairs. Follicles 2, ventricose. Asclepiadeee, p. 235. 



GENTIANA. CaL 4 5-cleft. Cor. bell- or funnel-form, tubular at 

 the base, with the orifice naked. Stam. 4 5, included. Stig. 2-lbbed. 

 Caps. 1-celled, 2-valved. Gentianea, p. 239. 



CUSCUTA. Cdl. 4 5-cleft. Cor. globose-urceolate ; limb 4 5-lobed. 

 Caps. 2-celled, opening all round transversely ; cells 2-seeded, 

 Convolxulaeea , p. 249. 



** Flowers 5~petalled, inferior'. 



HEUCHERA. CaL 5-cleft, persistent. Pet. 5, inserted on the calyx. 

 Caps, with 2 beaks, 1-celled, many-seed. Sazifragece , p. 139. 



*** Flowers b-petalled, superior. 



PAN AX. Fl. polygamous, umbelled. CaL obsoletely 5- toothed. 

 Pet. 5. Styles 2 3, short. Fruit fleshy, compressed, orbicular or 

 didymous, 2-celled. Araliacea, p. 151. 



* * * * Flowers incomplete . 



ATRIPLEX. Polygamous. PERFECT FL. Perianth 5-parted. Fruit 

 depressed. FEMALE FL. Perianth 2-parted. Stam. none. Chenopo- 

 dea, p. 296. 



CHENOPODIUM. Perianth inferior, 5-cleft, persistent, partly covering 

 the fruit. Chenopodetf, p. 295. 



SALSOLA. Peiianth inferior, 5-left, persistent, enveloping the fruit 

 with its base and crowning it with its broad scariose limb. Embryo 

 spiral. Chenopodece, p. 298. 



ULMUS. Perianth inferior, campanulate, 4^-5-cleft. Fruit com- 

 pressed, with a broad membranaceous border. Ulmacca, p. 333. 



CELTIS. Perfect or polygamous. Perianth inferior, 5-lobed. Drupe 

 globose, 1-seeded. Ulmce<z, p. 334. 



***** pi owers 5-petalled, superior, 2-sceded. 



OBS. The genera of this division form the Natural Order UmbeUiferce . 

 p. 139. 



TRIGYNIA. 

 * Flowers superior. 



VIBURNUM. CaL with the limb small, 5-toothed and persistent. Cor. 

 rotate subcampanulate or tubular, 5-lobed. Ber. ovate or globose, 1- 

 seeded, crowned by the teeth of the calyx. Caprifoliacce, p. 155. 



** Flowers inferior* ^ . ., 



RHUS. CaL small, 5-parted. Pet. 5, ovate, spreading. Drupe near^ 

 ly dry, with one bony seed. Anacardiacea , p. 75. 



STAPHYLEA. CaL 5-parted, covered at base by an urceolate disk ; 

 lobes oblong, concave, coloured. Pet. 5, alternate with the sepals, 

 Caps. 2 3-celled ; cells membranaceous, inflated, united at base or 

 throughout their whole length. Staphyleacea, p. 73. 



