KEY TO TIIK FAMILIKS. 34, 



rACK 



Stamens 4 Dogwood 372 



Stamens usually more than 5 . . . Apple 245 

 Petals present and more or less united 



Ovary superior, or free from the calyx, (lowers rcj^ular 



Stamens free from the corolla, or mercley adnaic to the base 

 Corolla nearly of separate petals . . White Alder 374 

 Petals distinctly united 



Herbs without green leaves . . Indian- 1 'ipc 375 



Plants with normal, sometimes evergreen leaves. Hcalh 376 



Stamens borne at the sinuses of the corolla Pyxidanthcnt in 



Diapcnsia 406 

 Fertile stamens on the tube or throat of the corolla, as many as 

 its lobes and opposite them 

 Herbs 



Style I Fruit a capsule . . . Primrose 407 



Styles 5 Fruit an urticle .... Plumbago 411 



Shrubs or trees Sapodilla 412 



Fertile stamens on the tube or throat of the corolla, as many as 

 its lobes and alternate with them 



Ovaries 2, separate . Dogbane and Milkweed 431, 435 

 Ovary solitary, forming in fruit a i seeded drupe Olive 419 

 Ovary deeply 4-lobed around the style . . Horage 444 

 Ovary 2-4, celled, the carpels separating into i seeded nutlets 



\'ervain 446 

 Ovary i -celled Waterleaf, Gentian & Ikickbcan 443. 425. 430 

 Ovary 2-5 celled 



Stipules present Logania 423 



Stipules none 



Capsule few-seeded. Chiefly vines. Dodder and Morning 



Glory 440.438 



Capsule relatively few seeded, Herbs Phlox 441 



Capsule many-seeded Short ia in Diapensia. Nightshade 

 and Figwort . . • • 45^. 402. 460 



Fertile stamens fewer than the lobes of the corolla 



Fruit a i-seeded fleshy drupe .... Olive 419 



Fruit separating into 2-4 nutlets at maturity 



Ovary 4-lobed around the style .... Mint 44^ 



Ovary not lobed . . . • \'crvain 44^) 



Fruit a 2-celled capsule Figwort and Acanthus 460. 472 



Stamens more numerous than the lobes of liic corolla 



