LABIATE. 77 



occur in all the other British species. Nucules generally abortive : 

 at least I have never been able to find them mature. Plant light 

 green, more or less thickly pubescent with rather stiff hairs, those 

 on the stem deflexed. 



The British plant has the upper bracts usually narrow, and is the 

 Galeobdolon montanum of Reichenbach. Occasionally, however, I 

 have seen the bracts all broad and similar to the leaves (G. luteum, 

 Reich.), but the two forms certainly do not deserve to be called even 

 varieties. 



Yellow Archangel. 



Fi'ench, Lamier jaune. German, Goldnessel. 



Tribe VI.— AJUGOIDE^. 



Corolla apparently 1 -lipped, from the upper lip being very short or 

 split down the middle. Stamens 4 (rarely 2), parallel, the outer or 

 lower pair the longest ; anthers 2-celled, the cells contiguous. 



GENUS XVIIL— A JVG A. Linn. 



Calyx tubular, scarcely enlarging in fruit; limb erect or ascendino-, 

 with 5 teeth, which are not spinous-j^ointed. Corolla subunilabiate- 

 tube rather long; the upper lip very short, notched, the lower one 

 spreading, 3-lobed. Stamens 4; filaments subparallel, protrudino- 

 beyond the upper lip of the corolla; anther-cells joined at the apex, 

 aud diverging nearly in a straight line, opening by a longitudinal slit 

 common to both. 



Low herbs of various habit. 



The name of this geinis of plants seems to be a corruptiou of the Latin word ahi<jo 

 to drive away, in allusion to its remedial qualities. 



Section I.— BUGULA. Townef. 



Verticillasters 6 to many-flowered. Corolla blue, rose, purple, or 

 white, never yellow. 



SPECIES I.— A JUG A REPTANS. Linn. 



Plate MLXXXVIII. 



Bckh. Ic. El. Germ, et Helv. Vol. XVni. Tab. MCCXXXIV. Fig. 3. 

 Billot, Fl. GaU. et Gei-m. Exsicc. No. 1304. 



Perennial. Rootstock almost always emittmg elongated runnerlike 

 stolons with distant pairs of leaves. Flowering stems erect, the lateral 

 ones curving upwards, simple, with 1 or 2 pairs of leaves. Radical leaves 



