20 ANALYTICAL KEY 



K. Stamens attached to the base or tube of the corolla. 



Saprophytic herbs without green foliage Monotropoideae, 626 



Not saprophy tic ; foliage green. 



Trees, shrubs, or undershrubs; anthers mostly 2-celled. 

 Filaments united into 1-5 groups. 



Ovary superior TERNSTROEMIACEAE, 570 



Ovary at least partly inferior STYRACACEAK, 649 



Filaments free from each other. 



Style 1 ERICACEAE. 6i>"i 



Styles 4 EBENACKAE, 648 



Herbs; anthers 1-celled. 



Filaments united into a tube MALVACEAE, 566 



Filaments distinct, 2 at each notch of the corolla Adoxa, 761 



I. Stamens not more numerous than the corolla-lobes L. 

 L. Stamens of the same number as the corolla-lobes and opposite them. 

 Corolla appendaged with scales inside ; ovary 5-celled ; trees 



or shrubs SAPOTACEAE, 648 



Corolla not appendaged with scales inside; ovary 1-celled; 



herbs. 



Style 1; fruit a several-many-seeded capsule PRIMULAOEAE, 643 



Styles 5 ; fruit a 1-seeded utricle PLUMBAGINACEAE, 643 



L. Stamens alternate with the corolla-lobes or fewer M. 

 M. Ovary free from the calyx-tube (superior) N. 

 N. Corolla regular O. 



O. Stamens as many as the corolla-lobes P. 



P. Ovaries more than 1, or, if 1, deeply lobed Q. 

 Q. Ovaries 2, or, if 1, 2-horned. 



Stamens united ASCLEPIADACEAE, 663 



Stamens distinct. 

 Stipules or stipular membrane or line between 



opposite leaves; ovary 2-horned L.OGANIA< KAK. 6.~>2 



Stipules none ; ovaries 2. 



Leaves kidney-shaped, alternate Dichondra, (Ui'.t 



Leaves not kidney-shaped, chiefly opposite 



APOCYNACKAK, <<>1 

 Q. Ovary deeply 4-lobed. 



Leaves alternate BORAGIXAI KAK. 67'. 



Leaves opposite LABIATAK, 6'.) 



P. Ovary 1, not deeply lobed R. 

 R. Ovary 1-celled. 



Seed 1; corolla scarious PLANTAGINACEAK. 7\'.'< 



Seeds several-many. 



Leaves entire, opposite ( JKNTIANACKA ' 



Leaves toothed, lobed, or compound. 



Whole upper surface of corolla \\hite-hearded; 



leaflets 3, entire M> ni/nnthes, 660 



Corolla not conspicuously bearded ; leaves, if 

 compound, \viih toothed leaflets 



HYDKOI-IIYI.I.ACKAK, 676 

 R. Ovary 2-10-celled. 



Leafless twining parasites Ciixrufn, 671 



Leaves opposite, their bases connected by a stipular 



line LOGANIACEAE, <i.7j 



