1164 



117 



ANALYTICAL KEY. lxxl 



"Calyx 6-toothed. Stamens 6. Capsule 2-celled Peplis p. (156). 

 Calyx 5-lobed. Stamens 5. Capsule 1 -celled, several- 

 seeded Glaux (p. 292). 



Calyx of 4 or 5 sepals. Stamens 4 or 5. Capsule 1 -celled 



several- seeded .... Caryophyllace^ (p. 58). 

 Flowers giumaceous, consisting of chaffy scales alternating 

 with each other, enclosing the stamens. Leaves linear. 



Stamens 2 or 3 165 



Perianth entire, oblique, projecting on one side into a lip. Sta- 

 mens 6 Aristolochiace^ (p. 389). 



.Perianth 4-, 5-, or 6-merous. Stamens 4, 5, or 6 . . .118 



118 f Two or more ovaries Kosace^s (p. 127). 



\A single ovary 119 



^■1 q/ Perianth of 4 or 5 parts or teeth. Stamens usually 4 or 5 . 120 



\Perianth of 6 divisions. Stamens 6 124 



12 of Ovary inferior Thesium (p. 389). 



\Ovary superior 121 



12l/ Seeds several in the capsule , . . Plantago (p. 366). 

 \ Seeds solitary 122 



! Stipules leafy. Leaves broadly lobed or divided Kosace J3 (p. 1 27 ). 

 Stipules membranous, sheathing the stem Polygonaceje (p. 379). 

 Stipules minute or none 123 

 Stamens 4 PARIETARIA (p. 400). 

 Stamens 5 Chenopodiace^ (p. 370). 



fStem leafy. Stipules sheathing. Nut enclosed in three of 



124 J the perianth-lobes Rumex (p. 379). 



(Leaves linear, mostly radical. Capsule with 3 or more seeds 161 



(Stamens and pistils in distinct globular or cylindrical masses 

 without separate perianths 166 

 Stamens about 12, with one pistil in a calyx-like involucre. 

 Euphorbia (p. 391). 

 Flowers, male or female, each with a distinct perianth . .126 

 (Stems long and climbing 127 

 Stems parasitical on trees with hard green forked branches. 

 Viscum (p. 204). 

 Stems terrestrial or aquatic, but neither climbing nor floating 130 

 ( Leaves opposite. Capsules in a head concealed by leafy bracts 

 V21\ HUMULUS (p. 400). 

 [Leaves alternate. Berries red 128 



(Leaves angular or lobed. Stem climbing by tendrils. Perianth 

 5-lobed Bryonia (p. 157). 

 Leaves entire, shining. Stem twining, without tendrils. 

 Perianth 6-lobed Tamus (p. 455). 



/Male and female flowers on the same plant .... 131 

 1 ^ y \Male and female flowers on different plants . . . .139 

 ?Flowers giumaceous, consisting of chaffy scales enclosing 



the stamens . 165 



J Flowers of both sorts, or at least the males, with a distinct 



V. perianth of 3, 4, or more divisions 129 



^g! /Male perianth of 3 to 5 divisions 132 



\Male perianth of 6 divisions 138 



130/ Stamens as many as the divisions of the perianth . # . 133 

 \ Stamens indefinite 137 



130-1 



