288 THE KINDS OF PLANTS 



GG. Corolla somewhat irregular: stamens 5, in- 

 serted on corolla. 

 H. The ovary deeply 4-lobed about the style . . 



Echium in Borraginacece, p. 383 

 HH. The ovary not lobed: pod many-seeded: fila- 

 ments all or some woolly 



Verbascum in ScropJniUiridceie, j . 373 

 QG(i. Corolla regular: stamens equal in number to 

 the lobes of the corolla. 

 H. Ovaries 2, distinct: Ivs. opposite: juice 

 milky: styles or stigmas united Into 1. 

 I. Stamens separate, inserted on corolla: 

 corolla bell-shaped, funnel- or salver- 

 formed: pollen granular, as usual.. 



Apocynacece, p. 387 

 11. Stamens monadelphous, anthers attached 

 to stigma: a crown of hood-like 

 appendages each containing an in- 

 curved horn, borne on the stamen 

 tube: pollen cohering in masses 

 (waxy or grunular) . .Asclepiadacece, p. 386 

 HH. Ovary 1, deeply 4-lobed around style (2-lobed 

 in Heliotropium). 

 I. Leaves alternate: plants usually rougli- 



hairy Borraginaceie, p. .381 



ir. Leaves opposite: stems square 



Mentha in Liihiuf(t>, p. 370 

 HHH. Ovary 1, not deeply lobed, 1-celled: ovules 

 parietal, or 2 parietal placentae. 

 1. Leaves simple, entire, opposite, exstipa- 



late Gentianacew, p. 385 



II. Leaves toothed, lobed or pinnately com- 

 pound, mostly alternate 



Hydrophyllaceie, p. 383 

 HHHH. Ovary not deeply lobed, 2-10 celled. 



I. Leaves none: parasites, twining 



Cuscuta in Convolvulacece, p. 381 

 II. Leaves opposite, without stipules. 



J. Stamens free from corolla but inserted 



with it: style 1 Ericacew, p. 391 



jj. Stamens inserted on tube of corolla. 



K. Number of stamens 4 in 2 sets: 



ovary 2-4 celled (cells 1-seeded) 



Verbenactw, p. 372 

 KK. Number of stamens 5 or i rarely) 

 more. 



