4 
Ovary 2-several-celled—Continued. 
Flowers regular or nearly so—Continued, 
Stamens just as many or twice as many as the petals—Continued. 
Ovules (and usually seeds) several or many in each cell. 
Stipules between the opposite and simple leaves....-ELATINEE, 33 
Stipuies none when the leaves are opposite. 
Stamens 10, monadelphous at base ; 
leaflets 3, inversely heart-shaped ..Oxalis, in GERANIACEX, 51 
Stamens distinct, free from the calyx. 
Style 1, undivided ; leaves very small and scale- 
like ...--.....--- seeees Keberlinia, in SIMARUBACEA, 55 
Styles 2-5, separate.....-..-----------CARYOPHYLLE®, 28 
Stamens distinct, inserted on the calyx. 
Styles 2 (or 3), or splitting into 2 in fruit. SAXIFRAGACES, 107 
Style 1, pod in the calyx, 1-celled.......- LYTHRARIE*, 111 
2. Calyx-tube adherent to the ovary, at least to its lower half. 
Tendril-bearing and often succulent herbs. ....---------------- CUCURBITACE, 122 
Not tendril-bearing. 
Ovules and seeds more than one in each cell. 
Ovary 1-celled, many-ovuled from the base. .-.-...--.---- PORTULACES®, 31 
Ovary l-celled, with 2 or 3 parietal placenta ........ -.SAXIFRAGACE, 107 
Ovary 2-several-celled. 
Stamens on a flat disk which covers the ovary. .----- CELASTRINE%, 56 
Stamens inserted on the calyx. 
Stamens 8 or 4 (rarely 5); style 1.....-..--------- ONAGRARIE*, 113 
Stamens 5 or 10; styles 2 or 3, distinct. ........SAXIFRAGACEX, 107 
Ovules and seeds only one in each cell. 
Stamens 2 or 8; style 1; stigma 2-4 lobed ; herbs. ......-- ONAGRARIE#, 113 
Stamens 4 or 8; styles or sessile stigmas 4; aquatics...--. HALORAGEAS, 110 
Stamens 4; style and stigma 1; shrubs -.....------------+- CoRNACE®, 150 
Stamens 5; styles 2; flowers in umbels, or rarely in heads. UMBELLIFERS, 138 
GAMOPETALOUS FORMS IN POLYPETALOUS ORDERS. 
The following orders contain forms which have their petals more or less united into 
one piece: 
A. Stamens more numerous than the lobes of the corolla. | 
Ovary 1-celled, with one parietal placenta. ..---.------+----++--- LEGUMINOS, 68 
Ovary 2-celled, with a single ovule in each cell ...--.-----+---+----- POLYGALE, 26 
Ovary 3-many celled. 
Stamens free from the corolla; styles 5..-----.----- Oxalis, in GERANIACE.E, 51 
Stamens inserted on the base or tube of the corolla ; filaments 
monadelphous ...---------- wee cee nee tee eee eee nee MALVACE, 35 
B. Stamens as many as the lobes of the corolla. 
Ovary adherent to the calyx-tube ; terndril-bearing herbs -..----. CUCURBITACE®, 122 
Ovary free from the calyx, 4-8 celled; style none ......-- .-+--2------ ILICINE”, 56 
APETALOUS FORMS IN POLYPETALOUS ORDERS. 
The following orders contain forms which have no corolla, although the calyx is 
frequently petal-like. When there is but one set of floral envelopes this is considered 
to be the calyx. 
