POLYPETALA 
* © Pisil only one, simple or compound. 
a. Shrubs, trees or woody climbers. 
Style and stigma ove, 
Sepals, petals and stamens 6 each, opposite each other....-....Berberidaces, 
Sepals, petals and stamens 4 or 5 each (or stamens 8 in Ist). 
Strongly aromatic or heavy-scented...........0..seese0++- Utacers, 
Not aromatic: leaves simple, opposite...............+-.Celastracem, 
A vine climbing by tendrils.............2..-20000 seoseee. Vitacoss, 
Calyx 2-lipped: petals unequal: stamens 5-8, exserted...........-Sapindaces, 
Calyx 4-toothed: petals 2: stamens 2 to 4: fruit winged.........- ...-Oleacess, 
Calyx 4-cleft: petals 4: stamens 6: ovary long-stiped.......---.--+-- Isomeris, 
Calyx 4-toothed: petals 5, unequal: stamens 10...... ai tataigh viehet ete Leguminoses, 
Sepals 3 or 5, unequal: stamens 4 to 8, united below...... ....-Polygalacess, 
Styles or stigmas more than one. 
Styles 2: leaves opposite: fruit 2-winged............000 eoeeeres Sapindacesy, 
Styles 3-cleft: stamens 5, opposite small petals..... ies'eiete afeie' se? Rhamnaces, 
Stigmas 3: leaves alternate, 3-foliolate or simple.............- Anacardiaces, 
Stigmas 4 or 5: prostrate stems hardly woody........-......++ Saxifragaces, 
Stigma 5-lobed: small shrub: leaves opposite or whorled............ Ericaces, 
b. Herbs: leaves mostly or all radical, 
Stamens 1 or 3: sepals 2: petals 2 to 5: stigmas 2 or 3.........Portulacacem, 
Stamens 5, anthers united: lower petal spurred: style 1l............ Violaces, 
Stamens 5, opposite the petals. Sepals 2: style 3-cleft......... Portulacaces, 
Sepals colored, united: styles 5..Plumbaginaces, 
Stamens, sepals and petals 5 each: styles 3 or 6: very glandular. .Droseracess, 
Stamens 5 or 10, on the calyx: style 2 or 3.............. .....Saxifragaceaz, 
Stamens 10, on the receptacle: stigma 5-lobed..................... Ericaceszs, 
Stamens 10, styles 5: leaves 3-foliolate............+.- Oxalis in Geraniaces, 
Stamens 6 united in 3’s: sepals 2: petals 4 in unequal pairs...... Fumariaceer, 
Stamens 6: flowers nodding on a scape......... Vancouveria in Berberidaces, 
c. Herbs: leaves alternate. 
Corolla regular (petals alike) or nearly so, 
Stigma 1, often 2-lobed: stamens 6 (2 and 4)......... fe SIRES See isicre Cruciferss, 
stamens 6, equal: ovary on a stipe............... ..Capparidacea, 
stamens 4 to 7 and as many petals on the calyx........ Lythraces, 
Stigma 2-lobed: stamens 4: petals 2: sepals 2, white........... . Maianthemum, 
Stigmas 5: sepals 5: petals 5: stamens 10,........... deeeba ese ee Geraniacesm, 
