•10 ARTOCAEPACEAE. 



1. PILEA Lindl. Depressed, often creeping, succulent herbs. Leaves 

 mainly alternate: blades entire, 1-ribbed. Flowers monoecious. Sepals of 

 the pistillate flowers 3, very unequal, 2 of them flat, the third one much 

 larger, helmet-like, often enclosing the achene. Stigma tufted. 



fi"^ 1. P. microphylla (L.) Liebm. Plants with spreading or creeping succulent 

 branches 2-15 cm. long: leaf -blades elliptic, oblanceolate, or obovate, 2-6 

 mm. long, acute or acutish: cymes sessile or nearly so: sepals ovate, thin, 

 about 0.5 mm. long, abruptly pointed, greenish or pink: achenes about 0.4 mm. 

 long. — Hammocks, L. keys. — [E. K.] — {Bah., Cuba, Ant.) 



r 2. PAHIETAEIA [Touru.] L. Flimsy succulent herbs. Leaves alter- 

 nate: blades entire. Flowers polygamous, in clustered involucrate axillary 

 cymes, the involucres of 2-6 more or less united bracts. Stigma tufted. 



/t'tl. P. floridana Nutt. Stems 1-5 dm. long, usually puberulent, often much 

 branched: leaf -blades ovate to subrhombic, 0.5-5 em. long: sepals acute: 

 achene ovoid, 1 mm. long. — Hammocks, U. keys. — [E. K.] — (Ber., Cuba.) — 

 Pellitory. 



^f Family 2. ARTOCAEPACEAE. Mulberry Family. 



Shrubs or trees, the sap milky. Leaves mostly alternate : blades 

 equilateral, entire, toothed, or lobed. Flowers monoecious or dioecious, in 

 ament-like spikes or enclosed in a receptacle, the staminate with 3 or 4 

 stamens, the pistillate with a calyx of 3-5 sepals which greatly enlarge 

 and subtend or envelope the achene : gynoecium of 1 or of 2 united carpels ; 

 styles or stigmas 1 or 2. Fruit a syncarp or syconium. 



1. FICTJS [Tourn.] L. Shrubs, trees, or vines, with smoothish bark. 

 Leaves mainly persistent: blades entire, toothed, or lobed. Flowers in hollow 

 receptacles, the staminate with a calyx of 2-6 sepals, or these obsolete, and 

 1 or 2, or rarely 3, stamens. Pistillate flowers numerous: style rather long: 

 stigma clavate, peltate, or 2-lobed. Fruit depressed, globular, or elongate, 

 the achenes included. — Fig. 



Receptacle sessile : leaf-blades narrowed at the base. 1- F. aurea. 



Receptacle stalked : leaf -blades rounded or cordate at the base. 2. F. irevifolia. 



I S"^ 1. F. aurea Nutt. Tree, often starting as a vine, becoming 20 m. tall, with 

 glabrous twigs: leaf-blades oblong, or oval, 3-10 cm. long, acute or short- 

 acuminate at the base: fruit spheroidal or obovoid, about 2 cm. in diameter. 

 — Hammocks, U. keys, L. keys. — [E. K.] — {Bah., Cuba, Ant.) — Goldex-fig. 



,s^2. F. brevifolia Nutt. Shrub, or tree sometimes 15 m. tall, with glabrous 

 twigs: leaf -blades ovate, oval, or rarely obovate, 3-10 cm. long, mainly 

 rounded or cordate at the base: fruits subglobose, 2-2.5 cm. in diameter. 

 -^Hammocks and pinelands, U. keys, L. keys. — [E. K.] — {Bah., Cuba, Ant.) 

 — Wild-fig. 



., t Family 3. ULMACEAE. Elm Family. 



Shrubs or trees, the sap -watery. Leaves alternate : blades inequi- 

 lateral, commonly toothed. Flowers perfect, polygamous, or monoecious, 

 variously disposed. Calyx of 4 or 5, or rarely 3-9, partially united sepals. 

 Androecium of usually as many stamens as there are sepals. Gynoecium 

 of 2 united carpels. Fruit a samara or a drupe, or nut-like. 



