MACLOSKIE I ANALYSIS OF ORDERS AND FAMILIES. 919 



baccate or a stone-fruit, mostly capsules opening not quite to 

 their base. 



i. Fruit when capsular dehiscing into 2, rarely 5 or several valves. 

 Isostemonous. Bundles bicollateral. Seeds with endosperm. 

 Inflorescence often cymose. 



Family 99. Solanacea, Potato, p. 698. 

 *2. Capsule 2-celled, with many to few seeds. Bundles collateral. 



Stamens didynamous, except in some of Family 100. 

 j. Ovary 2-celled (antero-posteriorly), with axile placenta. Sta- 

 mens sometimes 5 or 2. Endosperm. Leaves mostly 



alternate. 



Family 100. Scrophulariacece, Snapdragon, p. 713. 



J2. Ovary 2-i-celled. Seeds many, flat, winged, with little or 



no endosperm. Trees or shrubs, mostly with opposite 



leaves. Family 101. Bignoniacece, p. 727. 



73. Ovary I -celled, with 2 parietal placentae (or 2- or 4-celled by 



ingrowth). Leaves opposite or whorled. Endosperm 



, present or none. Herbs. 



Family 102. Gesneriacea, p. 728. 



23. Ovary i -celled, or falsely 2-4-celled. Seeds few, not winged, 



with little endosperm. Capsule horned. Stamens as in 

 Scrophulariaceae. Gland-bearing herbs ; leaves mostly op- 

 posite. Family 103. Marty niacea, Unicorn-plant, p. 730. 



24. Ovary i -celled, with many seeds ; no endosperm. Corolla 



with a palate. Stamens 2, the anther-cells confluent. Float- 

 ing, aquatic or bog herbs ; the leaves tufted, or floating and 

 utriculiferous, or mere scales. 



Family 104. Lentibulariacece, Bladder-wort, p. 730. 



g2. (Plantaginales.) Flowers 4-merous, radiate, hermaphrodite or uni- 

 sexual. Leaves mostly alternate or basal. Usually herbs, rarely 

 with woody stock. Corolla scarious. Ovary i-4-celled; capsule 

 often circumscissile. Flowers mostly in heads or spikes ; but in 

 southern forms, few or solitary on the scape. 



Family 105. Plantaginacece, p. 731. 

 /2. Perianth epigynous. 



g. Stamens not united. (Rulriales.) Flowers 5-4-merous, the stamens or 

 carpels often fewer ; radiate or zygomorphic. Ovary divided or I - 

 celled ; the cells with several to I pendent seeds. Woody plants or 

 herbs, with opposite, mostly entire leaves. 



h. Stamens isomerous. Leaves stipulate or verticillate. Ovary 2-8- 

 cells, the cells mostly i -seeded. 



Family 106. Rnbiacea, Madder, p. 738. 

 It2. Stamens fewer than the perianth-segments. Ovary with only i 



fertile cell, I -seeded. Leaves exstipulate. 



i. Calyx at first obscure, afterwards often forming a pappus. Seeds 

 without endosperm. Flowers slightly irregular. 



Family 107. Valerianacca, p. 744. 



