r,ENTTANA. PENTANDRIA. DIGYNIA. 289 



the corolla ; 2 of the segments large, ovate, acute ; the others 

 linear-lanceolate. Corolla blue ; segments ovate, erect, beau- 

 tifully fringed at the tup and upper part of the sides; interior 

 folds wanting ; tube wiih 4 biovvn glandular spots at the base. 

 Anthers distinct, oblong, incumbent, yellow. Gtrmen attenuated 

 into a short slyle ; stigmas large, suborbicular, compressed, 

 erect ? Ca/isule oblong, on a short pec'icel ; valves membra- 

 naceous. Seeds oblong, brown, very, hispid. 

 iIab. In wet open meadows. October— November. 



This species differs remarkdbly, in several respects, from the 

 precedingv. It belongs to tlie genus GentiankllaI oi B or k' 

 Hansen. Linn x u s considered it a variety of G. cUiata. 



191. CUSCUtA. t. 



Valyx 4 — 5-cleft. Corolla 4 — 5-cleft, subcampanu- 

 Sate, marcescent. Capsule 2-celltd, opening ail round 

 transversely; cells 2-seeded. den. pi 121, Nutt, 

 Gen. II. Supp. Juss. p. 135. Lam. III. t. 88. f. 

 3. Roem. '^ Schiilt. Gen. 1119. Nat. Ord» 

 CoNvoLVULi Jiiss. Leafless, twining, parasitic 

 herbs; stamens sometimes only 4; embryo spiral. 



Dodder^ 



1. C. americana L. : flowers pedunculate, umbellate, 5> 

 cleft; stigmas capitate ; corolla tubular-carnpanulate, with the 

 border small and spreading. Willd, Spec. I. p. 702. 

 M i c :-. I I. I. p. 1 75. Pursh FL 1. p. 1 1 6. B i g. Bost. 

 p. G4. Elliott Sk. I. p. 220. V/alt. Car. p. ]09o 

 Rocm. & Schult. VI. p. 201. 



Annual. Stems filiform, orange-coloured, twining rovmd the 

 stem of herbs and small shrubs, or loosely hanging from one 

 plant to another. Flowers in dense umbellate clusters. Calyx 

 with very obtuse segment?. Petals small, nearly white- Sta- 

 mens 5, with 5 fringed scales at the base ; filaments subulate ; 

 anthers roundish, 2-ceiled. Styles 2, erect, subulate. Cafi- 

 nule ovate, 2 — 3-seeded. Seeds roundish, hollowed on one 

 side ; embryo spiral. 



Hab. In low grounds. June — August. 



A common parasite oi; Lycopus eurofiaus. Like the rest 

 of its genus, it fi^st springs from the earth, but afterwards at- 

 taches itself to other plants, and becomes parasitic, drawing its 

 substance from them alone, by means of its lateral roots. 



f Gentianella. Cal. 4-fidus. toroUa liypocrateriformis, 4.fida absque 

 psrapetalis, fund- -ectarifero poris 4. Stam.4:\ antheris supra stigcna con- 

 iiiventibr.3^ Gamen subpf'diceilattim obsokte tetrsgonum, sUj^iiiiiU latiu- 

 scula revoluto. Ccj"'*- dehiscens, angul is obtusis, seminibns 4.fariam dis- 

 n.,siti3. Borkhuusen. 



37 



