SPONDIACEAE. 83 



3. P. pinetorum Small. Stems 3-10 dm. tall, glabrous: leaf -blades narrowly 

 elongate-linear, 4-15 cm. long: involucres turbinate, mostly less than 3 mm. 

 long: capsules 2.5-3 mm. long: seeds 2-2.5 mm. long, slightly tuberculate. 

 Pinelands and sandy places, U. keys, L. keys, L. S. keys. [E. K.] (Cuba.) 



20. PEDILANTHUS Neck. Shrubs with fleshy branches. Leaves succu- 

 lent. Involucres borne in dichotomous, often contracted cymes, oblique and 

 strongly 2-lipped, the lower lip much larger than the upper. Capsule 3-lobed, 

 the carpels often keeled or horned. 



1. P. tithymaloides (L.) Poit. Plants 3-16 dm. tall or more, the stem and 

 branches sometimes zigzag: leaves spreading; blades ovate to ovate-lanceolate, 

 4-11 cm. long: involucres 12-14 mm. long, red or reddish, the 2 terminal lobes 

 broadly ovate, ciliolate: stamens and style exserted: capsules 6-7 mm. long: 

 seeds 3-3.5 mm. long. Hammocks and cultivated grounds, U. keys. Nat. of 

 the Tropics. [E. K.] (Bah., Cuba, Ant.) BEDBIRD-FLOWER. JEW-BUSH. 



Order SAPINDALES. 



Shrubs or trees. Leaves various : blades simple and entire or toothed, 

 or compound. Calyx of distinct sepals. Corolla of distinct petals, regu- 

 lar or rarely irregular, or wanting. Androecium of as many stamens as 

 there are petals, or of twice as many, or rarely of more or fewer. Fila- 

 ments distinct. Gynoecium of a single carpel, or of several united carpels. 

 Fruit various. 



Plants with resin-bearing tissues. Fam. 1. SPONDIACEAE. 



Plants not resin-bearing. 



Leaf-blades simple, pinnately veined. 

 Disk present : corolla present. 



Anthers introrse : seeds arilled. Fam. 2. CELASTRACEAE. 



Anthers extrorse : seeds not arilled. Fam. 3. HIPPOCRATEACEAE. 



Disk obsolete : corolla wanting. Fam. 4. DODONAEACEAE. 



Leaf-blades simple and palmately veined or compound. Fam. 5. SAPINDACEAE. 



FAMILY 1. SPONDIACEAE. SUMAC FAMILY. 



Shrubs, trees, or vines, with a milky, resinous, often acid or caustic 

 sap. Leaves alternate: blades simple or pinnately compound. Flowers 

 monoecious, dioecious, or polygamous. Calyx of 3-5 sepals. Corolla of 

 3-5 petals, larger than the calyx. Androecium of 3-6, or rarely more, 

 stamens. Gynoecium of 1, or of 3-5 more or less united, carpels. Fruit a 

 drupe or a berry. 



Leaf-blades simple : ovary on a swollen receptacle. 1. MANGIFEEA. 

 Leaf-blades compound : ovary not on a swollen receptacle. 



Drupe somewhat elongate, the coats permanently united. 2. METOPIUM. 



Drupe depressed, the coats ultimately separating. 3. TOXICODENDKON. 



1. MANGIFEEA L. Trees. Leaf-blades simple, relatively narrow. 

 Flowers polygamo-dioecious, in stiff panicles, the branches not plumose. 

 Sepals 4 or 5. Petals 4 or 5. Ovary oblique: style 1, lateral. Drupe ovoid to 

 somewhat reniform, smooth: stone tenaciously fibrous-coated. 



1. M. inclica L. Leaf-blades leathery, oblong to linear-oblong or linear-lanceo- 

 late, mostly 1-3.5 dm. long, reticulate: panicles 1-4 dm. long: sepals ovate: 

 petals oblong or nearly so, 3.5-4 mm. long: drupes 5-10 cm. long, aromatic. 

 Hammocks and fields, L. keys. Nat. of the E. Indies. [E. K.] (Bah., Cuba, 

 Ant.) MANGO. 



