426 



DECANDRIA. PENTAGYNIA. Cerastium. 



We have 2 varieties of this, one with the leaves quite smooth 

 and almost glossy ; the other with woolly leaves ; but they are 

 clearly one species. What can be the cause of the smoothness of 

 the one, growing, as they do, intermixed ? — Flowers generally 

 I, and sometimes i 2, but in the Dutch gardens several on a stem. 

 Linn. fl. lapp. Some plants green, and others hoary. Doubted 

 whether not 2 distinct species. Ray. Hairs on the fruit-stalks 

 transparent, jointed, the knots somewhat opake. Mr. Griffith, 

 From 2 to 4 inches high. Flowers white. 



Alpme Mouse-ear. Mountains and sides of rills, as on Snow- 

 don, on the north side of Wyddfa and Clogwyn du yn yr Ardue 

 near Llanberris. [Top of Clogwyn y Garnedd, very near to 



ifol 



July. 



latifo'Iium. C. Leaves elliptical, clothed with short spreading bristles : 



flower- stalks terminal, simple, mostly solitary : 

 capsule oval. E. hot. 



E. hot. W3-Jacq. coll. i. 20. 



The stems form tufts, but are shorter and more thickly set with 

 leaves than in the C. alpinum ; the leaves are broader and more ob- 

 tuse, clothed ( 'constantly , as far as we have observed) with numerous 

 short rigid spreading bristly hairs, various in position and direc- 

 tion, making a harsh kind of covering, quite different from the 

 silky hairs of C. alpinum. They are also in general more thickly 

 jointed* The flower-stalks are terminal, mostly solitary, simple, 

 often as long as the whole stem, clothed with glandular spread- 

 ing hairs, and frequently destitute of bracteae. The flowers 

 differ but little from that species. It appears that the stem is at 

 length protruded beyond the insertion oi the flower-stalk, and 

 may occasionally bear an autumnal flower ; when the first has 

 ripened its seed. The capsule is oval, and is not curved, shorter 

 than that of C. alpinum. E. hot. — Mr. Lightfoot refers his 

 Scottish specimens to the C. latifolium, but his figure represents 

 the C. v alpinum. 



[Specimens from Mr. Griffith, gathered on Clogwyn y 

 Garnedd, agree with a specimen which I have from Switzer- 

 land. Mr. Griffith observes that it grows in no other place 

 about Snowdon.] P. June. 



arvense. 



C. Leaves strap-spear-shaped, 



bluntish, fringed 



at the 



base : blossoms larger than the calyx. 



E.bot.§Z-Kn\ph. %~Va\ll. 30.4, and b-Ger. 4/~. U**/« 



J.B. iii. 36'Q. \-Ger. em. 595. 15-Park. 



1333. 7- 



Leaves pointed, covered with a short thick down. VaiU 



Petals twice as long as the calyx. Hall. 







