356 HYDEOPHYLLACEAE. 



possibly chlorophyll^ have been observed in some species. [Name from the 

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

 europaea L. 



Capsule circumscissile ; corolla-lobes obtuse ; plant orange. 1. C. 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 clusters; 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. ohtusiflora. 

 Love- VINE. 



2. Cuscuta pentagona Engelm. Am. Journ. Sci. 43: 340. 1842. 



Cuscuta arvensis Beyr.; Hook. PI. 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 eampanulate, 

 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 L. Field Dodder. 



Family 4. HYDROPHYLLACEAE Lindl. 



Water-leaf Family. 



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

 rerely opi30site 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-eelled, the sacs longitudinally dehiscent. Disk annular, or none. Ovary 

 superior, 2-celled, or 1-celled with 2 placentas; 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 w^estern North America. 



1. MARIIiAUNIDrUM Kuntze, Eev. 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-celled, or incompletely 2-celled; ovules numerous. Pruit 

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

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



