356 THE LABIATE FAMILY. [Stackyl* 



narrower ; they are very shortly stalked, oblong or lanceolate, slightly 

 cordate at the base, 2 to 4 inches long. Flowers of a pale bluish -purple, 

 in whorls of 6 or 8, forming shorter and more crowded spikes than in 

 S. sylvatica; the calyx-teeth long and pointed, but not prickly. Corolla- 

 tube rather shorter, with a broader and somewhat shorter lower lip than 

 in S. sylvatica. 



In ditches, and on moist banks, in Europe, Russian Asia, and northern 

 America, generally a more northern plant than S. sylvatica. Abundant 

 in Britain. PL. summer and autumn. S. ambigua, Sm., is a hybrid with 

 S. sylvatica; it has rather broader and longer-stalked leaves, and a 

 rather longer tube to the corolla. 



5. S. arvensis, Linn. (fig. 804). Field S. A slender, hairy annual, 

 very different in aspect from the preceding species ; the stems branched, 

 decumbent, or slightly ascending, from an inch or two to nearly a foot 

 long. Leaves small, ovate, scarcely cordate. Flowers small, of a pale 

 purple, in whorls of 2 to 6 or 8, forming loose, leafy spikes. Calyx- 

 teeth as long as its tube. Corolla scarcely longer than the calyx. 



In fields and waste places, spread over Europe and Russian Asia, 

 except the extreme north, and carried out with our crops even to tro- 

 pical countries. Common in England, rare in Ireland and Scotland. 

 FL the whole season. 



' XIII. GALEOPSIS. GALEOPSIS. 



Erect, or slightly decumbent annuals, with spreading branches and 

 flowers in dense whorls in the upper axils or at the summit of the 

 branches. Calyx nearly regular, with 5 pointed teeth. Corolla with a 

 tube longer than the calyx ; the upper lip erect, concave and entire or 

 slightly notched; the lower spreading and 3-lobed. Stamens 4, in 

 pairs ; the cells of the anthers opening by a transverse slit, bordered 

 with hairs. 



A small genus, consisting of European and north Asiatic weeds of 

 cultivation, distinguished from Stachys chiefly by the anthers. 



Hairs of the plant short and soft. Calyx-teeth not longer than 

 the tube. Stems not swollen under the nodes. 



Flowers purple 1. G. Ladanum. 



Flowers yellow 2. G. ochroleuca. 



Hairs of the plant long and stiff. Calyx-teeth long and almost 



prickly. Stems swollen under the nodes 3. G. Tetrahit. 



1. G. Ladanum, Linn. (fig. 805). Red G. An annual, seldom 

 above 8 or 9 inches high, with very spreading, almost decumbent 

 branches, and covered with a very short, soft down. Leaves shortly 

 stalked, narrow-ovate or lanceolate, coarsely toothed. Flowers purple, 

 6 to 10 together, in dense whorls in the upper axils, the upper ones 

 forming a terminal head. Calyx-teeth usually very pointed, but 

 shorter and less prickly than in 0. Tetrahit, the tube of the corolla 

 considerably longer than the calyx. 



In cultivated and waste places, all aver Europe and Russian and 

 western Asia. Frequent in southern England, decreasing in Scotland, 

 local in east Ireland. Fl. summer and autumn. It varies much in the 

 breadth of the leaf, from ovate to nearly linear ; in the degree of 

 hairiness, and in the size of the flower. [0. angustifolia, Bar., is a 



