3 
*** Ovaries or lobes of ovary 3-5, with a common style.......... ---.-GERANIACE®, 50 
**** Ovary only one, and 
t Simple, with one parietal placenta .......22222..ce0c- ween eens eee... LEGUMINOS&, 68 
tt Compound, as shown by the number of cells, placenta, styles, or stigmas. 
Ovary 1-celled. 
Corolla irregular; petals 4; stamens 6..-..........---........ FUMARIACEX, 13 
Corolla irregular; petals and stamens 5.......... wwe eee e cone VIOLARIEE, 24 
Corvlla regular or nearly so. 
Ovule solitary; shrubs or trees; stigmas 3......2....... ANACARDIACEX, 67 
Ovules 1 or 2; fruit a cartilaginous follicle; low spinescent 
Shrubs .... 2.2. eee eee eee eee eee Glossopetalon, in SAPINDACE.X, 67 
Ovules more than 1, in the center or bottom of the cell. 
Petals not inserted on the calyx............--- ----CARYOPHYLLEE, 28 
Petals on the throat of a bell-shaped or tubular calyx. LYTHRARIE®, 111 
Ovules several or many, on two or more parietal placentie. 
Seeds comose or long-hairy; shrubs or small trees... -TAMARISCINEE, 33 
Seeds not comose or long-hairy. 
Leaves punctate with pellucid and dark dots...-HYPERICINEE, 34 
Leaves not punctate. 
Sepals 5, very unequal or only 3................. CISTINEH, 23 
Sepals and petals 4 or 5; stamens 6-........ FRANKENIACEX, 28 
Sepals and petals 5; stamens 5 or 10. 
Styles 3 or 4, with flabellate many-cleft 
StiZMAB.... ek eee eee eee eee eee - TURNERACE#, 120 
Styles 3 or 4, club-shaped; ovary and 
stamens raised on astalk......... - PASSIFLORACE&, 121 
Styles with simple stigmas; ovary sessile. SAXIFRAGACEX, 107 
Ovary 2-several-celled. 
Flowers irregular, 
Anthers opening at top, 1-celled; ovary 2-celled .......... -POLYGALE®, 26 
Authers opening lengthwise, 2-celled; ovary 3-celled ...-.. SAPINDACEX, 64 
Flowers regular or nearly so, 
Stamens neither just as many nor twice as many as the petals. 
Triadelphous ; petals 5.2.20. 220.22 e ee cee wee HYPERICINE®, 34 
Tetradynamuus (rarely only 2 or 4); petals 4...........CRUCIFER&, 13 
Distinct and more numerous than the petals ........... SAPINDACEH, 64 
Stamens just as many or twice as many as the petals, 
Ovules and seeds only 1 or 2 in each cell. 
Herbs; flowers perfect and symmetrical. 
Cells of the ovary as many as the sepals, etc...GERANIACEH, 50 
Cells of the (divided) ovary twice as many as 
the styles, sepals, etc. .... cc. cece cece cece ----LINEH, 46 
Shrubs or trees. 
Leaves bipinnate and alternate .......... veceeeMELIACESH, 55 
Leaves pinnate or 2-foliolate, opposite, not 
dotted... ce eee cece cece eee ee -ZYGOPHYLLEX, 49 
Leaves 3-foliolate, pellucid-punctate..Ptelea, in RUTACEEX, 54 
Leaves palmately veined and fruit 2-winged, 
or pinnate and fruit a berry ............22.. SAPINDACEX, 64 
Leaves pinnately veined, simple, not punctate. 
Calyx not minute ; pod colored, dehiscent ; 
seeds inclosed in a pulpy aril...... 2... CELASTRINE, 
Calyx minute; fruit a berry-like drupe ...... ILICINE®, 
