HALOEAGEJE. ( WATER-MILFOIL FAMILY.) 159 



1. N. verticillata, IIBK. Shrubby; stems pubescent, recurved ; leaves 

 opposite and whorled, lanceolate, tomentose beneath; peduncles short, 3- or 

 several-flowered; petals 5, showy ; stamens 10, the alternate ones shorter. 

 Marshes and margins of ponds. August. Steins 3 -4 long. Flowers 

 purple. 



5. CUPHEA, Jacq. 



Calyx tubular, 12-ribbed, gibbous or spurred at the base on tl.e upper side, 

 G-toothed, and usually with as many little appendages in the sinuses. Petals G, 

 unequal. Stamens 11-12, unequal. Ovary with a gland at the base next the 

 spur of the calyx. Style filiform. Stigma 2-lobed Capsule 1 - 2-celled, few- 

 seeded. Chiefly herbs, with branching stems and purplish flowers. 



1. C. viscosissima, Jacq. Annual, clammy-pubescent; leaves thin, 

 opposite, ovate-lanceolate, long-petioled, rough ; flowers nearly sessile, borne 

 between the petioles, solitary; petals violet-purple; stamens 12. Upper dis- 

 tricts. August. Stem 1 high. 



2. C. aspera, Chapm. Perennial; nmricate-hispid and clammy ; leaves 

 3-4 in a whorl, lanceolate, nearly sessile; peduncles longer than the leaves, 

 borne between the petioles (whorled); petals white or pale purple; stamens 

 11. Low pine barrens, West Florida. Stem 1 - 1-J high. Leaves 1' long, 

 rigid. Root bearing small tubers. 



The CRAPE MYRTLE (LAGERSTRCEMIA INDICA, L.), originally from East- 

 ern Asia, is common in cultivation. 



ORDER 59. HALOKAGE^E. (WATER-MILFOIL FAMILY.; 



Aquatic herbs, with finely dissected leaves, and small sessile flowers, 

 axillary or in bracted spikes. Calyx tube adherent to the 1 -4-ceIled 

 ovary. Petals (when present) and stamens inserted on the tin-oat of 

 the calyx. Cells of the ovary with a single suspended ovule. Stig- 

 mas 1-4, sessile. Fruit rndehiscent. Embryo in the axis of fleshy 

 albumen. 



1. PROSERPOSTACA, L. 



Calyx tube 3-sided, 3-lobed. Petals none. Stamens 3. Stigmas 3. Fruit 

 bony, 3-angled, 3-celled, 3-seeded. Herbs witli piimately dissected leaves, and 

 minute axillary greenish flowers. 



1. P. palustris, L. Leaves lanceolate, sharply serrate, the submerged 

 ones pectinate. Ponds and ditches. June -August. Stem 1-1^ long, 

 ascending or floating. 



2. P. pectinacea, Lam. Leaves all pectinate, the divisions filiform; 

 fruit rugose. With the preceding. Stem 3'- 12' long. 



2. MYRIOPHYLLUM, Vail. WATER-MILFOIL. 



Flowers monoecious or polygamous. Calyx 4-parted in the sterile flowers, 

 4-toothed in the fertile ones. Petals 4 or none. Stamens 4 or 8. Stigmas 4, 



