286 
Festuca rubra near Cardiff. 
The second form also belongs to the variety genuinn (Hack) 
and is entitled to rank as a new subvariety ; it is given the sub¬ 
varietal name tcnuifolia. It is capable of growing under the most 
extreme xerophytic conditions and is generally associated with 
halophytic conditions. Its morphological and anatomical structure 
support the view that it is certainly a xerophyte, and under the 
influence of salt water it shows certain halophytic tendencies. 
It is fairly densely caespitose; its rhizomes are short and more or 
less curved and ascending from the base. The leaves are slender 
and dark glaucous green, having a “ bloom,” The panicle is more 
compact than in grandiflora ; the internodes rough ; the spikelets 
fewer, but the individual glumes large and as numerous as in 
grandiflora , with shorter awns. This new form is of special 
interest because it appears to be peculiar to certain habitats. 
The third form also comes under HackePs variety genuitia and 
probably corresponds to subvar. glaucescens Hack. Its main points 
of difference are the yellowish-green colour of its leaves, the 
perfectly glabrous sheaths, and the size of the panicle, with fewer 
spikelets, and fewer glumes with longer awns than in the other two 
subvarieties. It is distinctly violaceous and hispidulous with a 
“ bloom.” 
I am indebted to Professor Trow for drawing my attention to 
these grasses and placing his garden material at my disposal: to Mr. 
G. Claridge Druce for kindly examing specimens and confirming 
my determinations ; and to Mr. R. S. Adamson for helpful criticism 
of the manuscript. 
BIBLIOGRAPHY. 
1. Babington. Manual of British Botany, Ed. VIII, p. 440. 
2. Boswell-Syme. Sowerby’s English Botany XI, Gramina, 1872. 
3. Druce, G. C. Hayward’s Botanists’ Pocket Book, 1914. 
4. Fries, E. Novitiae Florae Suecicae, Mant. Ill, p. 6. 
5. Grenier and Godron. Flore de France III, 1856 pp. 572, 574. 
6. Haberlandt, G. Physiological Plant Anatom}’, Eng. Trans, by Drum¬ 
mond, 1914. 
7. Hackel, E. Monographia Festucarum europaearum, 1882. 
8. Koch. Synopsis Florae Germanicae et Helveticae, Ed. iii, pp. 705-6. 
9. Levvton-Brain, L. On the Anatomy of the Leaves of British Grasses, 
Trans. Linn. Soc., London, 2nd Ser. Botany, Vol. VI, 
Pt. 7., Feb., 1904. 
10. Massee, G. Diseases of Cultivated Plants and Trees, 1910. 
11. Townsend. Flora of Hampshire, 1883. 
12. Trow, A. H. Flora of Glamorgan, Vol. I, 1911 p. 181. 
13. Watson. Cybele Britannica III, 1882. 
14. White, J. W. Flora of Bristol, 1912. 
