4 SYNOF&'IS OF THE NATVJRAL OBBEBS. 



2-6-valTed. Embryo curved Sround Imealy endosperm.— Herbs with opp, 

 simple leaves ; stip. scarious or 0. 



XVI. PoETULACE^ (Portulaca). Plou-ers reg. iSep. ?, connate below, 

 the free portion deciduons. Pet. 4-6, perigynotis. 8tam. 4-rDany, perigy- 

 nons. Ovary J infer. Capsule dehiscing transversely. Embryo curved 

 round mealy endosperm. — Herbs. Leaves altern. or opp., often with hairj 

 stipular appendages. 



XVII. TAMAE1SCINE2E (Tamarix). Flowers veg. S^ep. and i)et. 5, rarely 



4, free or connate below, 8tam. 4, 5, 8 or 10. Ovary 1-celled, ovules 

 many, on 3 basal placentas. Capsule 3-valved. Seeds comose.— Shrubs or 

 trees, with minute altern. simple exstip. leaves. 



It'^*-^l0vary syncarjpous {a<pocarj[)ous in some Malvaceae), 1-many-ceUed ; 

 'placentas axile or basal. 



XVIII. Elatine^ (Bergia). I^oiyers reg., minute. -8'ep. and pet. usually 



5, distinct, imbricate. 8tam. 3, 5 or 10. Ovary 3-5-celled ; cells many- 

 oniled ; placentas axile. Capsule septioidally 3-5-valved. — Annuals os- 

 undershrubs. 



XIX. Tern STKCEMiACE^. ^otaers reg., 2-sexual or dioecious. Sejp. 5, 

 distinct. Pet. 5, free or connate at the base. 8tam. usually many, often 

 adnate to base of deciduous corolla.. Ovary 3-5-celled ; ovules 2-many in 

 each cell, axile. — Trees or shrubs, with altern. simple exstip. leaves. 



XX. DlPTEROCAEPE^ (Shorca). Flowers reg., 2-sexual. 8e^. 5, con- 

 nate, persist. 8tam. many ; fil. short, connective subulate. Ovary 3- 

 celled ; cells 2-ovuled. Fruit inclosed in the enlarged 6-winged caL— 

 Eesinous trees, with altern. simple coriaceous stipulate leaves. 



XXI. Malvace^. Floiuers reg., usually 2-sexual. 8ep. 5, valvate, free 

 or connate. Pet. 5, imbricate, twisted. iStam. usually many, 1-adelph,, the 

 tube adnate to base of pet. ; anth. 1-celled. Ovary 2-many celled ; ovules 

 1 or more in each cell, axile. Fruit of distinct carpels or capsular. Em- 

 bryo curved. — Trees, shrubs or herbs. Leaves altern. simple or rarely 

 compound, stipulate. 



XXII. STEECULiACEiE. F%owers 2-oT Isexuskl, usually regular. Sep. 

 5, more or less connate, valvate. Pet. 5, connate below or 0. _ 8tam . 1-20 ; 

 fil. more or less connate, anth. 2-celled. Carjpels 2-5 (1 in Waltherio,). 

 Fruit of follicles, or a loculicidal capsule. — Herbs, shrubs or trees. Leaves 

 altern., simple or compound, stipulate. 



XXIII. Til I ACE^. J'ioit'ers mostly !?-sexual and reg. Sep. 5 or 4i, free 

 or connate. Pet. 6 or 4, distinct Stam. usually many, distinct ; anthers 

 2-eelled. Ovary usually 2-5-celled ; style simple ; ovules --many in each 

 cell. Fruit a capsule or drupe. Endosp. fleshy. — Herbs, shrubs or trees. 

 Leaves usually altern., stipulate. 



Sub -DIVISION 2. Discifloree. /Sep, distinct or contiate, rarely 

 super, to ovary. Pet. distinct, or connate at the very base. Torus 

 generally expanded into a pulvinate or cupular disk between the pet. 

 *nd ovary, rarely of glands or 0. 

 Exceptions, Disk obscure in Malpigliiacece, or lining the cal. in EKart-neas 



and Anacardiaceoe ; not present in Hem, Coriaria and in some Linecc 



