Phytogeographical Excursion in the British Isles. 323 
2787. Fcstuca ovina L. Over the greater part of Britain this 
is doubtless a rarer grass than F. rubra, with which it is much 
confused, but it is an abundant species on the chalk and limestone 
downs. On the peat moors it is often represented by the variety 
paludosa Gaudin (F. tenuifolia Sibth.) an awnless plant, and perhaps 
a good biological species. In recording F. ovina it is extremely 
important that the species should be authentically named, and also 
as to the special variety which occurs. 
2818. Brachypodium sylvaticum Roem. & Schult. On the 
limestone at Ballyvaghan 9, this assumed much of the habit of 
pinnatum ; it occurred also in the var. glabrescens Syme. 
2827. x Agropyron Hackelii Druce ( =A.junceuvi x repens—A. 
acutum auct. ang .—Triticum acutum auct. ang.). This hybrid grass 
was found near Blakeney 28 in small quantity, at Southport 59, 
but these much nearer A. junceum, and at North Bull, Co. Dublin. 
At Blakeney a possible hybrid A. pungens X repens also occurred. 
2828. A. pungens Roemer & Schult. This grass likes a stiffer 
soil than junceum, which is a plant of mobile sands, while this 
occurs on the borders of clayey salt-marshes. It was seen near 
Blakeney 28 and at Havant 11. 
2830. Agropyron repens Beauv. var. An abundant and 
dominant plant in the grass vegetation bordering on the salt- 
marshes at Hayling Island, and especially near Burlesden Bridge, 
S. Hants ; preferring shelter. The leaves are intensely glaucous. 
[The same form occurs near Boston, Lincolnshire.] 
2160. jfuniperus communis L. Common above Dunkeld, 
E. Perth 89 and near the Trossachs, W. Perth 87. In each place 
some forms approaching the so-called variety coronata occurred. 
Bow Hill, W. Sussex. 
2861. jf. sibirica Burgs. ( =jf . nana Willd.). Abundant on 
Urrisbeg, Co. Galway and descending to near sea-level. 
2862. Taxus baccata L. Abundant on the limestone of 
Silverdale, where its luxuriance on a very dry looking limestone 
scree surprised some of the foreign visitors. Abundant in the 
Killarney woods. On the chalk of East Sussex and S. Hants, 
where it sometimes forms pure woods of considerable extent. 
2874. Equisetum variegatum Schleicher. Southport 59. 
2877. Adiantum Capillus- Veneris L. In great beauty in 
fissures of the limestone at Ballyvaghan, Co. Clare 9 : the form 
with large pinnae. 
2880. Asplenium marinum L. In splendid condition near the 
Black Head, Co. Clare and also occurring at the Lizard, Cornwall 1. 
At the Lizard it grew close to A. Adiantum-nigrum and near by 
occurred a remarkable form intermediate in character suggesting 
the hybrid, A. Adiantum-nigrum x marinum. Professor Graebner 
and Dr. Ostenfeld were also of this opinion, but Dr. Stansfield 
considers it an abnormal form of the Black Splesmont. 
2885. Asplenium acutum Bory. Sparingly but in fine condition 
near Killarney and apparently a distinct species. 
2893. Polystichum aculeatum Roth var. lonchitioides Deakin. 
Ballyvaghan, Co. Clare f9. 
2900. D. ceinula Kuntz at Killarney plentiful. 
2907. Polypodium vulgare L. var. semilacerum, Mallow. 
2916. Hymenophyllum tunbrigense Sm. and H. pcltatum Desv. 
