2 
2. Calyx more or less coherent with the surface of the compound ovary. 
Ovary 8-30-celled ; aquatic......---- cere eeerre eee rcerset eters NYMPHEHACES, il 
Ovary 2-5-celled. 
Leaves alternate, with stipules ..----+-e-e* -----5+°-+ -Pomew, in Rosace*, 102 
Leaves opposite, without stipules..---.----- o eeccnece Some SAXIFRAGACE, 107 
Ovary 1-celled, with the ovules parietal. 
Fleshy plants with no true foliage ; petals many .-..-.-----+---: CACTACEE, 125 
Rough-leaved plants ; petals 5 or 10 ..---------- eee eres eee ee LoaAsAcE.®, 119 
Ovary 1-celled, with the ovules rising from the base ...--.--.+---- PORTULACES, 31 
B. Slamens of the same number as the petals and opposite them. 
Pistils 2-6, separate or more or less united. 
Flowers diwcious; stamens distinct ; woody vines. .....++- MENISPERMACE, 10 
Flowers perfect: stamens more or less monadelphous; shrubs or trees. 
Carpels 4 or 5..-----se08 cee eee tere ce teeee wee w eee ceenes STERCULIACE®, 44 
Carpels 3-.....----- peewee cence eee ees pee eee cece ee ce eees MALPIGHWIACEE, 47 
Pistil only one. 
Ovary 1-celled. 
Sepals 6; stigma 1; anthers opening by uplifted valves.... BERBERIDE®, 10 
Sepals 2; stigmas 3; anthers not opening by uplifted valves.PORTULACE#, 31 
Ovary 2-4-celled. 
Calyx-lobes minute or obsolete ; petals valvate...-..-.--- AMPELIDACEX, 61 
Calyx 4-5 cleft, valvate in the bud; petals involute .....-..-- RHAMNES&, 57 
Stereuliacez (p. 00) and Malpighiacew (p.- 00) may be looked for here. 
C. Slamens not more than twice as many as the petals, when just the number then alternate 
with them. 
1, Calyx free from the ovary, é.¢., the ovary wholly superior. 
* Ovaries 2 or more separate. 
Stamens free from the calyx. 
Leaves punctate with pellucid dots ..-------+++++-+++ +++ wes eceses RvuTACEX, 52 
Leaves not pellucid-punctate. 
Low shrub with rigid entire leaves. ....------ .Castela, in SIMARUBACEA, 55 
Herbs, not fleshy .--------------0see-ee sere crete: RANUNCULACEX, 6 
Herbs with thick fleshy leaves.-...--..----++++-++-+--+° CRASSULACE, 109 
Stamens inserted on the calyx. 
Just twice as many as the pistils (fl. symmetrical). ..---.-----CRASSULACE, 109 
Not just the number or twice the number of the pistils. 
Leaves without stiptles 0.00.05 22 eee ere rete eee woe SAXIVRAGACE.E, 107 
Leaves with stipules. .....---------- eee e eee cece ce ee a cee cenees RosacEesx, 101 
* * Ovaries 2-5, somewhat uniled at base, separate above. 
Leaves punctate with pellucid dots -.----+----++--eeercr errr tects --RUTACEX, 52 
Leaves not pellucid-punctate. 
Shrubs or trees with opposite leaves and distinct stamens .....- SAPINDACE.E, 64 
Shrubs or trees with opposite leaves and monadelphous sta- 
MCNS 2a ce eee ee coe cece eee nee ere eneee a saee anes »e-»MALPIGHIACE.E, 47 
Terrestrial herbs; the carpels fewer than the petals... eeeees SAXIFRAGACEE, 107 
