ANALYSIS OF THE NATURAL ORDERS. 195 



Flowers in a compact head surrounded by an involucre. COMPOSITE. 7C 



c Flowers separate, irregular, perfect. Plants erect. LOBELIACEJE. 7} 



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



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



d Leaves opposite, with stipules between, or verticillate. KUBIACE.S. 67 



il Lvs. opp. Stipules none. Stam. 5 4. Ov. 2 5-celled. CAPRIFOUACEJ:. 66 



Stam. 2 3. Ov. 1-celled. VALERIANACE,E. C8 



Stamens 4. Flowers capitate. DIPSACE.S:. 69 



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



e Herbs. Ovary with 1 style and many seeds. PRIMULACE^E. 73 



(, Trees or shrubs. Ov. 1-styled, 5-celled, 1-seeded. SAPOTACE^E. 77 



f Style none. Drupe 4 6 seeded. AQUIFOLIACE.E. 74 



f Style one. Drupe 4-seeded. VERBENACE.S. 83 



f Style one. Capsule 3 5-celled, OO-seeded. ERICACEAE. 73 



g Ovary deeply 4-parted, forming 4 achenia. BORKAGINACE^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.B. 97 



h Stigmas distinct. Flowers minute, yellow, CONVOLVULACE.S. 93 



k Ovula solitary. Corolla limb entire. OKD. 101 



k Ovules several. Leaves cleft and lobed. HYDROPHYLLACE^E. 91 



k Ovules several. Lvs. or Ifts. entire. Fls. not spicate. GENTIANACE^E. 95 



Fls. spicate. PLANTAGINACEJE. 79 



m Leaves all radical. Flowers spiked. PLANTAGINACEJC. 79 



m Leaves opposite. Ovary 2-celled. LOGANIACE^. 85 



Ov. 3-celled. Not twining. ) 



m Leaves alternate.-Ov. 3-celled. Not twining. [ POI.YMONIACK.B. 92 



Ov. 2-celled. Twining. CONVOLVULACE^Z. 93 



Ov. 2-celled, 4-seeded. Erect. BORRAGINACEJS. 90 



Ov. 2-celled, oc -seed. Styles 2. HYDROPHYL. 91 



Style 1. SOLANACE^B. 94 



n Shrubs. Corolla 5-parted, imbricated hi bud. JASMINAOE^E. 98 



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



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

 o Ov. entire, 4-ovuled, 4 or fewer-seeded. Lvs. opposite. VERBEXACEJE. 88 

 o Ovary entire, O0-ovu"ed, GO or several-seeded, (s) 



p Leaves opposite. Stems square. Stamens 2 4. LABIATE. 89 



p Leaves alternate. Stems round! Stamens 5. BORRAGINACE.E. 90 



s Trees or climbing shrubs. Seeds winged. BIGXONIACEJE. 83 



s Trees. Seeds not winged. SOROPH. 86. Erect shrubs. ERICACBJS. 73 



s Herbs. Leafless parasites. OROBANCHACE.*. 82 



Lvs. at base. Fruit 1-celled. Fls. spurred. LENTIBTTLACEJE. 81 



Leafy. Fruit 4 5-celled. Leaves opposite. PKDALIACEJB. 84 



Fruit 2-celled. (t) 



t Corolla convolute in bud. Seeds exalbuminous. ACANTHACE^E. 87 

 t Corolla imbricate in bud. Seeds albuminous. ScROPntJi.ARiACE,aB. &6 

 t Corolla plicate in bud. Seeds albuminous. SOLANACEJE. 9-i 



C COHORT 3. APETALOUS. 



Plants herbaceous, the flowers not in aments (except Humulus, 115). (2) 

 Plants woody, shrubs or trees. (5) 



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

 2 Flowers achlamydeous, neither calyx nor corolla, (f) 



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

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



