CAREX HELVOLA, BLYTT 43 
Neuman (11) strangely puts Aelvola as “canescens X norvegica,” 
yet has a canescens x lagopina, and refers to Hartman! (but he 
does not give #elvola as a hybrid, merely saying “habit of 
the foregoing,’ ze. C. micustachya, ‘‘“Ehrh. Hann. Mag.,” 
1784, p. 9). Dr. Williams (17) gives other hybrids with 
canescens in Europe ; of these C. paniculata x , C. paradoxa x , 
C. remotax,and C. diotca x are the only ones that can occur 
in Britain, 
Mr. Fernald? says his C. elachycarpa, figs. 133, 134, “at 
maturity strongly suggests the little known C. helvola, Blytt, 
which, however, has very different perigynia.” But the 
figure rather suggests a small or starved C. curta than helvola. 
C. helvola seems to have been first gathered in 1826 by 
Holmgren (2), and by Blytt in 1833 (2), but not published 
until 1849. 
One difficulty is, C. dagopina is not known on Ben Lawers. 
REFERENCES. 
(1) ANDERSSON.—Cyper. Scand., 1849, p. 61. 
(2) Biyrr.—Norges Flora, 1861, p. 188. 
(3) NormMan.—Soc. Nat. Spec., 1864, p. 43. 
(4) BLtytt.—Norges Fl., Supp., 1877, p. 1254. 
(5) Lance.—Medd. Groenland (3), 1887, p. 288. 
(6) Kin_tMan.—Med. Soc. Fl. et Fa. Fenn., 1889, p. 16. 
(7) Herb. Mus. Fenn., 2nd ed., 1880, p. 16, 125. 
(8) Biyrr.—Ny. bid. i. Norge, 1892, p. 15. 
(9) RosENvinGE.—Medd. Groenland, Supp., 1892, p. 719. 
(10) Hjett.—Fl. Fennica, 1892, p. 256. 
(11) NEuMAN.—Sveriges Flora, 1901, p. 711. 
(12) A. BENNETT.—Trans. Bot. Soc. Edinb., 1886, p. 361. 
(13) 55 Jour. Botany, 1886, p. 149. 
(14) Drucr.—Ann. Scot. N. Hist., 1897, p. 260. 
(i) ames Jour. Linn. Soc., 1898, p. 157. 
(io a Jour. Botany, 1898, p. 157. 
(17) WitLiams.—Jour. Botany, 1908, p. 369. 
(18) MarsHaLu.—Jour. Botany, 1908, p. 108. 
(19) Druce.—Ann. Scot. N. Hist., 1909, p. 238. 
; “ Skand. F1.,” 11th ed., 1879, p. 471. 
2 “Proc. Am. Acad. Arts and Sc.,” 1902, p. 492. 
