GYNANDRIA. 249 



HAB. Meadows and pastures, frequent, sometimes found with white 



flowers. Fl. July, Aug. 11 . 

 Stem 2 3 feet high. Leaves scabrous. Scales of the involucre 



almost black, the teeth brown. Florets purple, numerous. 



3. C. Cyanus (Corn Blue-bottle], scales of the involucre ser- 

 rated, leaves linear entire the lowermost toothed. Lightf. 

 p. 498. E. B. f.277. 



HAD. Corn-fields, frequent. H.July. Q- 



Two to three feet high, covered with a loose cottony down, espe- 

 cially on the stems, and on the undersides of the leaves. Florets 

 of the disk small, purple j those of the ray few, large, bright blue, 

 spreading. Scales of the involucre greenish, the margin brown. 



4. C. Scabiosa (greater Knapweed), scales of the involucre 

 ciliated ovate pubescent, leaves pinnatifid roughish the seg- 

 ments lanceolate acute. Lighlf. p. 500. E. B. t. 56. 



I IAB. Barren pastures and corn-fields, but not very common. Amongst 

 corn in the Carse of Gowrie, Lightf. Foot of a wall near the 

 quarry by Port Dundas, Dr. Brown. Banks of the Calder, near 

 the bridge, Hopk. Near Abeiiady, Mr. Arnott. With white flow- 

 ers ; near Dundee, D. Don. Road-side between Guillon and 

 Dirleton, E. Lothian, and corn-fields to the W. of Largo, Fifeshire, 

 Maugh. Fl. July, Aug. U . 



Three feet high, erect, much branched. Involucres globose, very 

 large, their scales cottony, almost black, theciliae whitish. A var. 

 of this is found by Mr. D. Don in Scotland, with the leaves less 

 deeply divided, and the radical ones very large, which he considers 

 to be, and probably with justice, the C. coriacea of Willd. 



XX. GYNANDRIA a . 



1. MONANDRIA. 



* Anther adnate, nearly terminal, persistent. Pollen mass, composed 

 of angular granules elastically cohering, faed by its base. Br. 



1. ORCHIS. Cor. ringent. Lip spurred on the under side at 

 the base. Glands of the stalks of the pollen niass (1 2) 

 contained in one common little pouch. Br. 



2. GYMNADENIA. Cor. ringent. Lip spurred at the base be- 

 neath. Glands of the stalks of the pollen mass naked, ap- 

 proximate. Br. 



3. HABENARIA. Cor. ringent. Lip spurred on the under side 

 at the base beneath. Glands of the stalks of the pollen 

 mass naked, distinct, with the cells of the footstalks aduate or 

 separated. Br. (This character seems too near that of the 

 last genus.) 



' I follow, in this class, entirely the new arrangements of Orchideou> 

 plants, published by Mr. Brown in the second ed. of Hortus Kcwensis. 



