EUTACEAE. 97 



FAMILY 2. OXALIDACEAB. WOOD-SORREL FAMILY. 



Herbs or rarely shrubs, the sap sour. Leaves mostly alternate : blades 

 3-several-foliolate or 1-foliolate, the leaflets commonly notched at the apex. 

 Flowers perfect, essentially regular, cymose. Calyx of 5 persistent sepals. 

 Corolla of 5 white or colored petals. Androecium of 10-15 unequal 

 stamens: filaments partially united. Gynoecium of 5 partially united 

 carpels: styles distinct. Fruit a loculicidal capsule, or rarely baccate. 



1. XANTHOXALIS Small. Herbs. Leaf -blades palmately 3-foliolate: 

 leaflets notched at the apex. Flowers in umbel-like or dichotomous cymes. 

 Sepals 5, not tubercle-bearing. Petals broadened upward. Filaments usually 

 unappendaged. Capsule elongate, erect. 



1. X. corniculata (L.) Small. Stem and branches 5-40 cm. long, with spread- 

 ing hairs : leaflets deep-green ; blades 5-12 mm. broad, or larger, ciliate : sepals 

 3-4 mm. long: petals 7-10 mm. long. Hammocks and pinelands. F. K. 

 (Ber., Bah., Cuba, Ant.) SOUR-GRASS. YELLOW WOOD-SORREL. 



FAMILY 3. MALPIGHIACEAE. MALPIGHIA FAMILY. 



Shrubs or trees, or partially woody herbs or vines. Leaves opposite: 

 blades simple. Flowers usually perfect, sometimes cleistogamous. Calyx 

 of 5, often gland-bearing, sepals. Corolla of 5 usually clawed petals, or 

 wanting. Androecium of 5-10 perfect or partially sterile stamens. Gynoe- 

 cium of 2-4, usually 3, distinct or united carpels. Fruit drupaceous, 

 capsular, or nut-like. 



1. BYBSONIMA L. C. Eich. Shrubs or trees. Flowers in terminal 

 racemes or panicles. Petals white, reddish, or purplish, reflexed. Stigmas 

 acute. Carpels permanently united. 



1. B. lucida (Sw.) DC. Evergreen shrub, 3-18 dm. tall, or a small tree: leaf- 

 blades spatulate to obovate-spatulate, 2-4 cm. long, lustrous above: racemes 

 24 cm. long: petals white, turning yellow or rose, 7 mm. long, the blades 

 reniform: drupes 9-12 mm. in diameter or rarely smaller. Hammocks and 

 low pinelands. F. K. (Bah., Cuba, Ant.) LOCUSTBERRY. 



FAMILY 4. RUTACEAE. RUE FAMILY. 



Shrubs or trees, or rarely herbs, often prickle-armed, and with 

 glandular-punctate tissues. Leaves alternate or opposite : blades simple 

 or pinnately compound, sometimes 1-foliolate. Flowers perfect or poly- 

 gamous, mostly regular. Calyx of 3-5, or rarely more, sepals, or wanting. 

 Corolla of 3-5, or rarely more, petals. Androecium of as many stamens 

 as there are sepals or petals or rarely twice as many. Gynoecium of 25 

 distinct or united carpels. Fruit capsular, samaroid, drupaceous, or 

 baccate. 



Fruit dry. capsular. 1. ZANTHOXYLDM. 

 Fruit pulpy, drupaceous or baccate. 



Stamens 8: fruit a drupe: leaf-blades (ours) 3 or 5-follolate. 2. AMTRIS. 



Stamens 20-60 : fruit a berry : leaf-blades 1-follolate. 3. CITRUS. 



1. ZANTHOXYLUM [Catesby] L. Shrubs or trees. Leaf-blades pin- 

 nate, sometimes 1-foliolate. Flowers polygamous, in short, axillary spikes, 

 or terminal corymb-like panicles or cymes. Sepals present or wanting. Petals 

 3-5, mostly erect. Mature carpels solitary, or 2-5 together. [Fagara L.] 



Flora of Miami 7 



