356 HYDROPHYLLACEAE. 



possibly chlorophyll, have been .observed in some species. [Name from ths 

 Arabic.] About 100 species, of wide distribution. Type species: Cuscuta 

 europaea L. 



Capsule circumscissile ; corolla-lobes obtuse ; plant orange. 1. O. americana. 



Capsule indehiscent ; corolla-lobes acute; plant yellow. 2. C. pentagona. 



1. Cuscuta americana L. Sp. PI. 124. 1753. 



Plant orange, the stems slender, the inflorescence glandular. Flowers 

 short-pedicelled in dense or rather loose 'dusters ; calyx-lobes 5, ovate-orbicular, 

 obtuse; corolla about 2 mm. long, its 5 lobes obtuse, shorter than the tube, the 

 broad scales fringed all around; capsules subglobose, about 3 mm. in diameter, 

 circumscissile near the base. 



Parasitic on various plants, Frozen Cay, Eleuthera, Cat Island, Watling's Island, 

 Cave Cay, Great Exuma, Acklin's, Fortune Island, Grand Turk and Anguilla Isles : 

 West Indies and tropical continental America. Reported by Dolley as C. obtusiflora. 

 LOVE-VINE. 



2. Cuscuta pentagona E-ngelm. Am. Journ. Sci. 43: 340. 1842. 



Cuscuta arvensis Beyr.; Hook. Fl. Bor. Am. 2: 77. As synonym. 1834. 



Plant pale yellow; stems filiform, the flowers nearly sessile in small 

 clusters. Calyx broad, 5-lobed, the lobes obtuse; corolla nearly campanulate, 

 5-lobed, the lobes acute or acuminate, as long as the tube, their tips reflexed, 

 the scales large, ovate, densely fringed all around with short irregular processes ; 

 stamens not exserted; style shorter than the ovary; stigmas capitate; capsule 

 depressed-globose, indehiscent. 



Parasitic on various weeds, Great Bahama, Andros, Eleuthera and Cat Island : 

 New York and Canada to Florida and Texas ; Jamaica ; Cuba ; Porto Rico. Referred 

 by Mrs. Northrop to C. americana Lt. FIELD DODDER. 



Family 4. HYDROPHYLLACEAE Lindl. 

 WATER-LEAF FAMILY. 



Herbs, mostly hirsute, pubescent or scabrous, with alternate or basal, 

 rerely opposite leaves, and perfect regular 5-parted flowers, in scorpioid 

 cymes, spikes or racemes, or rarely solitary. Calyx inferior, deeply cleft 

 or divided. Corolla gamopetalous. Stamens 5, inserted on the corolla, 

 and alternate with its lobes; filaments filiform; anthers mostly versatile, 

 2-celled, the sacs longitudinally dehiscent. Disk annular, or none. Ovary 

 superior, 2-celled, or 1-celled with 2 placenta; styles 2, separate, or partly 

 united; stigmas small, terminal; ovules anatropous or amphitropous. 

 Capsule 1-2-celled, mostly loculicidally 2-valved. Seeds usually pitted, 

 rugose or reticulated; endosperm fleshy or cartilaginous; embryo small; 

 cotyledons half -terete or plano-convex. About 17 genera and 175 species, 

 mostly natives of western North America. 



1. MARILAUNIDIUM Kuntze, Rev. Gen. PI. 434. 1891. 



Branching pubescent herbs, with alternate entire leaves, the flowers 

 solitary in the axils. Calyx 5-cleft. Corolla funnelform or salverform. 5- 

 lobed, the lobes imbricated in the bud. Stamens mostly included, borne on the 

 corolla-tube. Ovary 1-eelled, or incompletely 2-celled; ovules numerous. Fruit 

 a 2-valved capsule. [In honor of Dr. Anton Kerner, Knight of Marilaun.] 

 About 20 species, natives of America, the following typical. 



