348 THE HEATH PAMILT. 



corolla, witli small, tootlied appendages at the insertion of the anther on 

 the filament. 



Common in western Europe, from southern Spain to Norway. Ranges 

 over nearly the wliole of Britain, covering immense tracts of country on 

 the Scotch, Irish, Welsh, and some of the western English moors. Fl. 

 summer and autumn. 



3. Cross-leaved Heath. Erica Tetralix, Linn. 

 (Eng. Bot. t. 1014.) 



G-enerally a lower plant than the Scotch IT., hiishy at the base, with 

 rather short, erect flowering branches ; the leaves in fours, shorter and less 

 pointed than in that species, and cUiate with short stiff hairs, besides a short, 

 whitish down, which often clothes the branches and upper leaves. Flowers 

 about the size of those of the Scotch H., but more pink in colour, and form- 

 ing httle terminal clusters or close umbels. Appendages to the anthers 

 entire, awn-hke, and often nearly as long as the anthers themselves. 



A strictly western species in southern Europe, but in northern Europe 

 extends over Sweden and northern Grermany to Courland and Livonia, but 

 never so gregarious as the Scotch S. Ranges all over Britain, and very 

 common in the west. FL summer, rather late. A very marked variety, 

 with shorter and broader leaves of a darker green, from Cunnemara, in Ire- 

 land, and also from the Astxuias, has been distinguished under the name of 

 jE. Machaiana (Eng. Bot. Suppl. t. 2900) as a species, and was formerly 

 adopted as such by myself, but the numerous intermediate specimens I have 

 since seen, induce me now to consider it as a mere variety. Intermediate 

 forms between tlois and the following species, observed near Trm-o, m Corn- 

 wall, are beheved to be natural hybrids. 



4. Ciliated Heath. Erica ciliaris, Linn. 

 (Eng. Bot. Suppl. t. 2618.) 



A very handsome species, readily known by its raceme of highly coloiwed 

 rosy flowers, of the size of those of St. Daheoc's Menziesia. It is a strag- 

 gling shrub, ciliated with short stiff hau-s. Leaves 3 in a whorl, ovate. 

 Elowers in short pedicels in the axils of the upper leaves. Sepals small and 

 ciliate. 'Corolla about 5 lines long, with a small, veiy oblique, 4-lobed 

 mouth. Stamens enclosed in the corolla, without any appendages to the 

 anthers. 



A strictly western species, extending from Spain and Portugal to the west 

 of Ireland, and not penetrating far inland. Also found m Cornwall, and 

 near Corfe Castle, in Dorsetshire. Fl. early summer. 



5. Mediterranean Heath. Erica carnea, Linn. 



(JS. mediterranea, Eng. Bot. Suppl. t. 2774.) 

 Leaves in fours or rarely iu threes, linear but obtuse, firmer and thicker 

 than in the Scotch H. Flowers axillary, forming leafy racemes either ter- 

 minal or below the ends of the branches. Sepals linear-lanceolate and co- 

 loured. Corolla narrow-ovoid, about 3 lines long, of a reddish flesh-colonr. 

 Anthers protruding slightly from the mouth of the corolla, oblong, inserted 

 by their lower ends on somewhat flattened filaments, without any appen- 

 dages. 



The geographical range is different from that of most Heaths, being scat- 

 tered here and there on the lower hUls along the great central range of 



