114 50. CONVOLVULACE^E. 



stem le. oblong-linear, blunt. Fl. few, sessile, corymbose, rose- 

 coloured. Cal. deeply cleft, as long as the tube of the opening 

 corolla. 



Frequent. On the sea shore, among grass in damp places. (B) A. 68. Near 

 Largs; Bute; Cumbrae and Arran. 



2. GENTIANA. Gentian. 



G. CAMPESTRIS, L. Field-Gentian. Stem erect, much branched, 

 6 8 in. high. Le. ovato-lanceolate. Cal. 4-cleft, 2 outer seg- 

 ments large. Cor. 4-cleft, mouth fringed. Fl. very numerous, 

 blue. 



Frequent. Hilly pastures. (B) A. 810. Cathkin hills at the little braes; 

 " Near Airdrie and Kilbride," Pair. Drummond road near Craigton and Auch- 

 ineden; Cumbrae, Bute, and Arran. 



3. MENYINTHES. Buckbean. 



M. TRIFOLIATA, L. Bogbean, Marsh- Trefoil. Rhizome exten- 

 sively creeping. Le. ternate, on long footstalks ; leaflets obovate 

 or oblong, wavy. Fl. racemose, peduncles rising from the sheath- 

 ing base of the le. Cor. white, tinged with pink, elegantly fringed 

 within with white filaments. 



Frequent. Boggy ground and marshes. (B) P. 5 7. In Fossil marsh ; Cath- 

 kin hills : Frankfield Loch ; Germiston Loch ; Gourock to Arran. 



4. VILLARSIA. Villarsia. 



V. NYMPH^EOIDES, Vent. Nymphcea-lilce Villarsia. Le. float- 

 ing on the surface of the water, orbicular heart-shaped, peduncles 

 clustered, single-flowered. Cor. ciliate, yellow. Le. resembling 

 the water-lily. 



Cultivated in an old arm of the Kelvin at Gadder House, and by this means 

 getting into the Forth and Clyde Canal; lakes near Corehouse. (G) P. 78. 



49. POLEMONIACE.S3. 



1. PoLEM<5NiUM. Jacob 's-Ladder. 



P. C^ERULETJM, L. Blue JacoVs- Ladder, Greek- Valerian. Stem 

 erect, 1 2 ft. high. Le. pinnate, leaflets ovato-lanceolate. Stem 

 le. few, pinnate. Fl. numerous, paniculate, slightly drooping, 

 bright blue or white. 



Certainly an outcast from gardens. " Banks of the Avon at Barncluith," Patr. 

 Banks of the Colder; Falls of Clyde, in the woods. (I) P. 67. 



50.-CONVOLVULACE.aE. 



1. CONVOLVULUS. Bindweed. 



C. ARVENSIS, L. Small- Bindweed. Stem twining, mostly 

 prostrate. Le. arrow-shaped, basal lobes acute. Fed. axillary, 



