280 
Apocynaceae. Gentianacese. 
lobes; and b. V.laxum Bartl. Corona higher with crow¬ 
ded lobes; stem taller, often rather twisted at last. This 
last form is indicated in the calc. Alps of Switz.— 
Stony, thickety places; distrib. 6 officinale Monch. 1503. 
70. Apocynaceae. 
383. Vinca. Periwinkle. Y, 46. 
1. Ls elliptic, acute at both ends, or obtuse at the base. 
Cal.-lobes glabr. —Wooded and thickety places; distrib. 4 
minor L. 1504. 
— Ls oval, narrowed towards the top, rounded or almost 
cordate at the base. Cal.-lobes ciliate.—As the last; 
eastern and southern Switz., probably only escaped from 
gardens. 4, 5. major L. 1505. 
71. Gentianaceae. 
384. IVIenyanthes. Buck- or Bog-bean. V, 35. 
1. Rad. ls ternate. FIs white, reddish outside.—Marshes; 
distrib. 4, 5. trifoliata L. 1506. 
385. Chlora. Yeilow-wort. VIII, 5, 21. 
1. Caul, ls (glabr. and glaucous) triangular-oval, united by 
the whole width of their bases. Cal.-lobes subulate, 
shorter than the yellow cor.—Waste and rather damp 
places; scattered (wanting in G. S.). 6 perfoliata L. 1507. 
— Caul, ls oval or oval-lanceolate, rounded at the base, 
not united by the whole width of their bases. Cal.-lobes 
lanceolate-subulate, about the length of the cor. which 
is of a paler yellow. Stem lower than in the last.—As 
the last, rare; W. Y. Z. 6, 7 . serotina Koch. 1508. 
386. $weertia„ Sweertia. Y, 125. 
1. Peduncles quadrangular, almost winged. Cor. dirty violet, 
rarely whitish.—Marshy places of the mount, and sub¬ 
alp. (wanting in T. Z. S.). 7 . perennis L. 1509. 
387. Pleurogyne. Pleurogyne. Y, 126. 
1. Stem 2 — 4 cm. Peduncles elongated. FIs variegated blue 
and white.—Alp.; Graub. (Val Avers); Wall. (Saas, Zer¬ 
matt); Glams (Kistengrat). 7 carinthiaca Griseb. 1510. 
388. Gentiana. Gentian. Y, 48, 126. IY, 21. YI, 6. 
1. FIs yellow or red ....... 2 
— FIs blue or violet, rarely white . . . . 5 
