ANALYSIS OF THE NATURAL ORDERS. 195 



c Flowers in a compact head surrounded by an involucre. COMPOSITJE. 70 



c Flowers separate, irregular, perfect. Plants erect. LOBELIACEJE. 71 



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



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



d Leaves- opposite, with stipules between, or verticiilate. RUBIACE.E. 67 



d Lvs. opp. Stipules none. Stam. 5 4. Ov. 2 5-celled. CAPRIFOLIACEJE. 66 



Stam. 23. Ov. 1-celled. VAJLEKIANACE^:. 68 



Stamens 4. Flowers capitate. DIPSACE^:. 69 



e Herbs. Ovary with 5 styles and but 1 seed. PLU^UJAGIXACE^E. 80 



e Herbs. Ovary with 1 style and many seeds. / PBDIULACEJE. 78 



e Trees or shrubs. Ov. 1-styled, 5-celled, 1-sceded. SAPOTACE^E. 77 



f Style none. Drupe 46 seeded. AQUIFOLIACEJE. 74 



f Style one. Drupe 4-seeded. VERBEXACZ^E. 88 



f Style one. Capsule 3 5-celled, QO-seeded. ERIGACEJE. 73 



g Ovary deeply 4-parted, forming 4 achenia. " BOBRAGINACE.E. 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. APOCYNACE &. 96 



h Stigmas connate. Flower bud valvate ? ASCLEPIADACE^:. 97 



h Stigmas distinct. Flowers minute, yellow, COXVOLVTTLACE^E. 93 



k Ovules several. Leaves cleft and lobed. HYDROPHYLLACE.E. 01 



k Ovules several. Leaves (or leaflets) entire. GE^TIANACE^E. 95 



k Ovule solitary. Corolla limb entire. OED. 101 



m Leaves opposite. Ovary 2-celled. LOGAJS-IACEJ:. 8-"> 



Ov. 3-celled. Not twining, j 



m Leaves alternate.-Ov. 3-cellcd. Not twining, f PMOXIACE.E. 9: 



Ov. 2-celled. Twining. COXVOLVCLAO 



Ov. 2-celled, 4-seeded. Erect. BOREAGIXACE.E. 90 



Ov. 2-celled, QD-seed. Styles 2. HYDBOPHYL. 91 



Style 1. SOLAXACE.E. 94 



n Herbs. Corolla 4-parted, dry, scarious. PLANTAGINACE^:. 79 



n Shrubs. Corolla 5-parted, imbricated in bud. J.VS:JI>-AC: 



n Shrubs. Corolla 4-parted, valvate, or none. OLEACE^E. 99 



o Ovary deeply 4-parted, ibmaing 4 (or fewer) achenia. (p) 

 o Ov. entire, 4-ovuled, 4 or fewer-seeded. Lvs. opposite. YEIUJENACJ:- 

 o Ovary entire, OO-ovuled, OO or ^veral-seeded. (s) 



p Leaves opposite. Stems square. Stamens 2 4. LABIATJ:. x< 



p Leaves alternate. Stems round. Stamens 5. IBOERAGIXACEJ:. 90 



s Trees or climbing shrubs. Seeds winged. BIGNONIACE^. 83 



s ^ses. Seeds not winged. SCEOPHULAEIACEJ:. 85 



s Herbs. Leafless parasites. ^ OROBAXCHACE.E. 82 



-Lvs. at base. Fruit 1-celled. - Fls. spurred. LENTJBULACEJ;. Si 



Leafy. Fruit 4 5-celled. Leaves opposite. PEDALIACEJS. 64 



Fruit 2-celled. (t) 



t Corolla convolute in bud. Seeds exalburninous. ACA>*THACEJE. 87 



t Corolla imbricate in bud. Seeds albuminous. SCBOPHULARIACE^:. S7 

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



C COHORT 3. APETALOUS. 



Plants herbaceous, the flowers not iu aments (except Humulus, ' 15), 2 

 Plants woody, shrubs or trees. (5) 



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



3 Flowers achamydeous, with neither calyx 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) 



