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PACIFIC SCIENCE, Vol. XIII, January 1959 
Flowers pink; pods flattened. Canavalia 
Flowers yellow; pods cylindric. Vigna 
Leaves not ternate 
Leaves pinnately compound Derris 
Leaves simple or lobed, not compound 
Leaves lobed 
Leaves trilobate, hairy; fruit prickly; flowers yellow Triumfetta 
Leaves bilobate, smooth; fruit smooth; flowers pink 
Ipomoea pes-caprae 
Leaves not lobed 
Leaves cordate 
Leaves reddish or purplish Ipomoea batatas 
Leaves green 
Flowers tubular, over 1 in. long 
Flowers pink or purple Ipomoea gracilis 
Flowers yellow .Cucurbita Pepo 
Flowers minute, less than Vs in. long, without petals, borne in 
spikes 
Spikes 1 in. long, !4 in. wide Piper fragile? 
Spikes 2-5 in. long. Vs in. wide .Piper ponapense 
Leaves not cordate, glaucous below. Piper ponapense 
Not vines; erect or low herbs 
Large treelike herbs with entire leaves 3-6 ft. long; fruits in clusters, pendent, 
yellow, fleshy .Musa 
Not treelike 
Flowers 3-petaled, white; leaves oblong-lanceolate, in 2 ranks; roots with 
ginger odor Hedychium 
Not as above 
Leaves elongate, forming rosettes, up to 3 ft. long 
Flowers pink; plants usually less than a foot high. . . . . Zephyranthes 
Flowers white; plants 2-5 ft. tall Crinum 
Leaves not elongate, not in rosettes 
Sap milky 
Flowers small, white 
Leaves purplish; stems herbaceous 
Leaves minute, less than in. long, hairless; plants prostrate. . 
Euphorbia thymifolia 
Leaves larger, hairy; plants erect E. hirta 
Leaves green; stems sometimes woody at base. .E. Chamissonis 
Flowers red and yellow Asclepias 
Sap not milky 
Flowers tubular, pink or purplish 
Flowers borne in heads; small herbs Vernonia 
Flowers not in heads; shrubs or large herbs 
Leaves hairy. .Nicotiana 
Leaves hairless Mirabilis 
