ARTOCARPACEAE. 63 



1. PILEA LiiiJl. Depressetl, often creeping, succulent herbs. Leaves 

 mainly alternate: blades entire, l-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. 



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. — Pinelands. — F. K. {Bah., Cuha, Ant.) 



2. BOEHMERIA Jacq. Perennial herbs. Leaves opposite: blades 

 toothed, often o-ribbed. Flowers monoecious, in clusters on branches, the 

 pistillate with 4 united sepals surrounding the ovary. Stigma elongate. 

 Achene included in the horseshoe-like accrescent calyx. 



1. B. scabra (Porter) Small. Stem 2-15 dm. tall, typically rough-pubescent: 

 leaf-blades firm, ovate to elliptic-ovate, 2-5 cm. long, or rarely longer, short- 

 petioled: flower-clusters mostly contiguous: achenes about 1.5 mm. wide. — 

 Everglades. — False-xettle. 



3. PARIETARIA [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. 



1. P. floridana Nutt. Stems 1-5 dm. long, usually puberulent, often much 

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

 achene ovoid, 1 mm. long. — Hammocks. — F. K. (Ber., Cuba). — Pellitory. 



Family 2. ARTOCARPACEAE. 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 envelojDe the achene : gynoecium of 1 or of 2 united carpels ; 

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

 Flowers on the outside of a receptacle: styl wanting: stigmas not eccentric. 



1. MORDS. 



Flowers on the inside of a receptacle : style present, eccentric. 2. Ficds. 



1. MOBUS [Tourn.] L. Shrubs or trees, with scaly bark. Leaves de- 

 ciduous: blades commonly serrate, sometimes lobed. Flowers in pedunculate 

 spikes: staminate in cylindric spikes, with 4 sepals and 4 stamens. Pistillate 

 spikes cylindric: sepals 4, the lateral ones larger than the others: stigmas 2, 

 short. Fruit cylindric, the achenes included in the calyx. — Mulberry. 



1. M. rubra L. Tree becoming 20 m. tall, with nearly glabrous twigs: leaf- 

 blades ovate to oval-ovate, 6-20 cm. long, softly pubescent beneath: staminate 

 spikes 4-8 cm. long: fruit cylindric, 3-6 cm. long, deep-red or purplish. — 

 Hammocks. — (Ber. ) — Red-mulberry. 



2. FICUS [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: 



