192 ANALYSIS OF THK NATURAL OEDKRS. 



4 Ovariea simple, distinct or solitaiy. Vines or erect shrubs, (w) 

 4 Ovary compound, — wliolly adherent to the calyx, (x) 



— free from the calyx or nearly so. (5) 

 5 Stamens opposite to the petals and of the same number, (y) 

 5 Stamens alternate with the petals or of a different number. (6) 

 6 Leaves opposite on the stems, (z) 

 6 Leaves alternate, — compound, (yy) 

 — simple, (zz) 



I Polyandrons, — stamens 3 to 10 times as many as the petals, or more, (m) 

 7 Oligandrous, — stamens 1 — 2 times as many as the petals, or fewer. (8) - 



8 Pistils separate and distinct, few or solitary, simple, (n) 



8 Pistils united, — ovary compound, free from the calyx. (9) 



— ovary compound, adherent to the calyx, (o) 

 9 stamens opposite to the petals and of the same number, (p) 

 9 Stamens alternate with the petals or of a greater number, (q) 



II Flowers regular or nearly so. Fruit never a legune. (13) 



11 Flowers irregular (rarely regular and the fruit a legume). (12) 

 12 Stamens numerous, 3 or more times as many as the petals, (k) 

 12 Stamens few and definite, 5—12. (1) 

 13 Stamens 3 to 10 times as many as the petals. (15) 

 13 Stamens few and definite. — Ovary free frpm the calyx. (14) 

 — Ovary adherent to the calyx. ( j) 

 14 Pistils one, or indefinite (1 — \h\ distinct, simple, (e) 

 14 Pistils definitely— 2 united, the short styles combined into one. (f)i 

 T-Z or 4 united, styles or stigmas 3, 4 or 6. (g) 

 — 5, distinct or united, with 6 distinct styles, (h) 

 — 5 united and the styles combined in one. (i) 

 V 15 Stamens hypogynous, — on the receptacle. (16) 

 15 Stamens perigynous, — on the corolla at ba.se. (c) 

 — on the calyx at the base., (d) 

 16 PistUs few or many, distinct (at least as to the styles), (a) 

 16 Pistils (and styles if any) completely united, (b). 

 a Petals 5 or more, deciduous. Leaves not peltate. EAKuiroirLAOEjB. 1 



a Petals 3, persistent, withering. Floating leaves peltate. Cabombaoe.«. T 



a Petals numerous, deciduous. Leaves all peltate. Nelttmeiace^. 8 



b Sepals 4 — 6, equal. Petals GO, imbricated in the bud. NTMPH.aiAOKas. 9 



b Sepals 5, equal. Petals 5, imbricate. Leaves tubular. SAKEAOENiAOEji;. 10 



b Sepals 5, unequal. Petals 5, convolute. Flowers of 2 sorts. Cbtace^. IT ' 

 b Sepals 2, with — 5 petals imbricated in the bud. I^oetulaoaoe^. 22 



— i petals nsually crumpled in the bud. PAPAVEEAOEis. 11 



c Filaments united into a tube. Anther 1-ceUed. Malvaoejs. 24 



d Sepals 2, persistent, capping the pyxis. Poethlaoaoej!. 22 



d Sepals 3 — 5, valvate in the bud. Pod long, 2-oarpeled. Ttliaoe.*. 26 



d Sepals 8 — 5. — ^Petals imbricate in bud. Fruits simple. EosACEiE. 47 



— Petals convolute in bud. Fruit compressed. Loasaoe.*;. 53 



e Stamens opposite to the imbricated petals. Pistil 1 only. BEEBEiaDA0E.j!. 6 



e Stamens alternate with the petals or more numerous. EASuNOCLAOEffi. 1 



f Stamens g (tetradynamous). Pods 2-celled. CEnoirERa. 13. 



f Stamens 4, or 8 — 32. Pod 1-oelled. . CAPPAEiDAOKai. 14 



g Sepals and petals in 3s, Stamens 6. Small herb. LmNAMTHAOEJS. 36 



g Sepals and petals in 4s. Stamens 8. Climbing. Sapindaoe^. 41 



g Sepals, etc., in Ss. — Stam. 5, monadelphous. Climbing. Passifloeaobjl. 57 

 — Stam. 5, distinct. Greenish. Climbing. Okdee. 104 



— Stam. 5, distinct. Yellow. Erect. TrntiiBBAOEiE. 56 



— Stam. 5, distinct. Cyanic. Erect. DitosEEAOEiB. 19 



— Stam. 3 — 15. — Fls. ^ , very many, minute. Cistaoej!. 17 

 — Fls. monoecious. Okdee. 118 



