AKALYSIS OF THB NATURAL ORDERS. 195 



c Flowers in a compact head stuTounded by an involucre, ^oufosttm. 70 



C Flowera separate, irregular, perfect. Plants erect. LoBELiAOBiK. 71 



c Flowers separate, regular, imperfect. Weak vines. Oed. 58 



d Leaves alternate. Flowers 5-parted, regular, separate. Campanujlacej:. 72 



d Leaves opposite, with stipules between, or veitioiilate. Eubiace^e. 67 



d Lvs. opp. Stipules none. — Stam. 5 — i. Ov. 2 — 5-celled. CAPKrroUACEiB. 66 



— Stam. 2 — 8. Ov. 1-celled. Valekianace^. 68 



— Stamens 4. Flowers capitate. Difsaoej!. 09 



e Herbs. Ovary with 5 styles and but 1 seed. Plumbaoinace^. 80 



e Herbs. Ovary with 1 style and many seeds. Primulace^. 78 



c Trees or shrubs. Ov. l-styled, 6-oelled, 1-seeded. Sapotaobjb. 77 



f Style none. Drupe 4r— 6 seeded. Aquifoliaoeje. 74 



f Stylo one. Drupe 4-seeded. VEKuE^fAor^. 88 



f Style one. Capsule 3 — 5-oelled, OO-seeded. Eeicaoe^. 73 



e Ovary deeply 4-parted, forming 4 achenia. Bobraginace^. 90 



g Ovaries 2, distinct (often covered by the stamens), (h) 



g Ovary 1, compound, 1-celled (placenta often large), (k). 



g Ovary 1, compound, 2 — 6-celled. (m). 



h Stigmas connate. Flower bud convolute. Apoctnaob^. 96 



h Stigmas connate. Flower bud valvata 1 AscLEPiADACEJt. 97 



h Stigmas distinct. Flowers minute, yellow, Convolvdijice.«. 93 



k Ovules several. Leaves cleft and lobed. Htdrophtllaoe^. 91 



k Ovules several. Leaves (or leaflets) entire. GENXiANAOtfi. 95 



k Ovule solitary. Corolla hmb entire. Ohd. 101 



m Leaves opposite. — Ovary 2-oelled. Looaniaoe*. 86 



— Ov. 3-celled. Not twining, i 

 m Leaves alternate.-Ov. 8-celled. Nottwming. [ Polemoniaoe^. 95 

 — Ov. 2-celled. Twining. Convolvdlaoe^. 98 

 — Ov. 2-celled, 4-seeded. Erect. BoKBAOiNActt*. 90 

 — Ov. 2-celled, OO-seed. — Styles 2. Htdeophyl. 91 

 — Style 1. SoLANACiLs. 94 

 u Herbs. Corolla 4-parted, dry, scarious. PLAsiAaiNAOEa:. 79 



B Shrubs. CoroUa 5-parted, imbricated in bud. Jasmihaoe^. 98 



n Shrubs. Corolla 4-parted, valvate, or none. Oleaoks. 99 



O Ovary deeply 4-parted, forming 4 (or fewer) achenia. (p) 

 o Ov. entire, 4-ovttled, 4 or fewer-seeded. Lvs. opposite. Veebbnaoe^. 87 

 o Ovary entire, OO-ovuled, 00 or several-seeded, (s) 



p Leaves opposite. Stems square. Stamens 2—4. Labiate. 89 



p Leaves alternate. Stems round. ■ Stamens 5. Bobbaginaoe*. 90 



a Trees or climbing shrubs. Seeds winged. Bionohiaoe^. 83 



8 Trees. Seeds not winged. Soroph. 86. Erect shrubs. Ebioaok^. 78 



• Herbs. — Leafless parasites. Oeobanohaoejs. 82 



— Lvs. at base. Fruit 1-oelled. Fls. spurred. LEunBULAOEj:. 81 



— Leafy. — Fruit 4 — 5-celled. Leaves opposite. PEOALiAOEie. 84 



—Fruit 2-celled. (t) 



t Corolla convolute in bud. Seeds exalbuminous. AoANXHAOEjt. 87 



t Corolla imbricate in bud. Seeds albuminous. Sobophclakiaoe^. 86 



t Corolla plicate in bud. Seeds albuminous. Solanaom. 94 



C Cohort 3. APETALOUS. 



1[ Plants herbaceous, the flowers not iu oments (except Humulus, 116). (2) 

 T Plants woody, — shrubs or trees. (5) 



S Flowers with a regular calyx (or a calyx-like involucre). (3) 

 2 Flowers achlamydeous, — neither calax nor corolla, (f) 



3 Calyx tube adherent to the ovary, limb lobed, toothed, or entire, (a) 

 3 Calyx free from the ovary, sometimes enclosing it. (4) 



