DOUAGINACEiK. 93 



Tisu;illy iu)t so tall, iiiid tin- leaves (or ut least the outer ones) of 

 I lie barren shoots are abruptly contraeted into the petiole, and aeuuii- 

 nate at the apex. The blutehes on the leaves of the plant in the spe- 

 cimens 1 have seen are lar;jjer, and have u ;,'reater tendency to become 

 confluent. The calyx-teeth are deeper, and the fruiting calyx is more 

 bellshaped. The Howers are veiy similar, at first rose, then blue, as 

 in I', angustifolia, but not nearly so highly coloured ; the corolla is the 

 same in shape, but usually u little larger. The nucules are more 

 acute at the summit, and rather smaller. The hairs in the stem and 

 leaves are stiller, so that the plant is nuich harsher to the touch. I 

 have not seen P. ofHeinalis with the stainens exserted beyond the 

 corolla tube. 



Common Lwuj-icort. 



Fivncli, Tuhnonairc officinale. German, Gebruuchhches hungcnlcraut . 

 According to the ancient doctrine of signatures, this plant had an especial cITicacy 

 in diseases of the lungs ; its spotted leaves being supposed to represent these organs, 

 and, therefore, to indicate the direction of its natural curative properties. 



GENUS /y/.— MERTENSIA. Roth. 



Calyx 5-cleft or 5-partite. Corolla regular, funnelshaped, suddenly 

 dilated at the throat, which is open, without scales, but generally ^vith 

 5 small bosses; limb not oblique, slightly spreading, 5-lobcd. Stamens 

 exserted. Style undivided. Nucules smooth or reticulate, rather soft, 

 at length inflated, without a tumid ring at the base, attached to the 

 flat receptacle by a plain surface. 



Herbs, often glabrous and glaucous. Flowers in teiininal scorpioid 

 racemes, often corymbosely or paniculately arranged. Corolla red, 

 changing to blue or purplish-blue, varying to white. 



SPECIES!.— MERTENSIA MARITIMA. Bon. 

 PiAii: JIXCIX. 



Tick-h. Ic. Fl. Germ, et Helv. Vol. XVIII. Tab. MCCXVII. Fig. 1. 



Pulinonaria maritinia, Linn. Sm. Engl. Bot. No. 308. 



Lith«>.';|)Ormum mnritimum, Lrhm. Asp. Vol. 11. p. 291. Sm. Engl. Fl. Vol. I. p. 267. 



Steenliammcra maritima, h'rirh. Fl. Germ. Exeurs. p. 337. 



Steenhaniniaria maritinia, Frli:^. Summ. Veg. Scand. pp. 12 and 192. 



Stems procumbent or decumbent, much branched. Leaves oval or 

 obovate-oval, the lower ones shortly stalked, the upper sessile, all 

 pseudo-distichous, very thick and fleshy, smooth when fresh, glabrous, 

 intensely glaucous. Cymes dichotomous, with the leaves at the base 

 of the forks opposite. Bracts large, resembling the leaves. Calyx 

 with 5 segments, cleft three-quarters of the way down. Tube of the 

 corolla with .t folds in the throat ; limb with 5 rhombic lobes as broad 

 as long. Anthers equal to the filaments. 



