118 G. Claridge Druce. 
authorities; but I think Dr. Ostenfeld is unaware of Buchenau’s 
change of mind. When he wrote his monograph, it is true he did not 
think ranarius worthy of notice, but subsequently (as Dr. Graebner 
informs me), having seen its constancy in culture, he became con- 
vinced it was a good species. I may add that Dr. Ostenfeld’s example 
does not appear to be well chosen, since we have a halophytic form 
of Funcus compressus raised to specific rank as funcus gerardi, and 
this in less saline situations shows the passage to the type. Again in 
Melandryum Preslii, we have a purely glabrous form of M. dioicum 
(associated it is true with other characters), raised to specific rank. 
Moreover, ¥. ranarius does not appear to be strictly halophilous, 
since Dr. Graebner has named some plants, which | collected on 
sandy ground, in inland situations, at Pyrford, Surrey and Woolmer 
Forest, Hants., as 7. ranarius; to which the suggested name var. 
halophilus, therefore seems quite inappropriate. Dr. Graebner tells 
me that when 7. bufonius and ranarius grow together they can be 
readily distinguished. 
2538. Scirpus cespitosus L. var. austriacus, (Palla). We are 
greatly indebted to Dr. Ostenfeld for his discrimination of two forms, 
and for his kindness in showing us how they can be identified. I 
gathered germanicus in Co. Tyrone this year, and austriacus in 
Argyll and Inverness. 
2684. Agrostis alba L. A common form with dark purplish- 
black florets was found at about 3,000 feet on Ben Lawers, but 
Professor Hackel does not separate it from the type. 
2687. A. canina L. var. mutica Gaud. Killarney. 
2733. Phragmites vulgaris (Lam.) Druce (vel. P. communis 
Trin.=Arundo Phragmites L.) forma latifolia. This large form 
with leaves, 4 cm. in breadth—much greater than those of the 
common reed—which occurred in the Broads, cannot, I think, 
belong to the South European Arundo isiaca, since ours has 
deep-purplish panicles. I overlooked mentioning it in my notes 
and am indebted to Dr. Ostenfeld for drawing attention to it: 
forma czespitosa also occurs. 
2745. Molinia caerulea Moench. Professor Hackel referred 
the plant from Crowden Clough (p. 38) with interrupted panicles 
to the type. 
2761. Poa trivialis L. The form of this from Ben Lawers and 
from Crossfell, Cumberland, which Dr. Ostenfeld suggested might 
be var. subalpina Beck (FI. Nied. Oster, 86, 1890), Professor 
Hackel does not separate from the type. 
2827. Agropyron pungens (vel. litorale) x repens=xX A. Oliveri 
mihi (p. 323, 1912). I am pleased Dr. Ostenfeld (p. 126) has 
independently come to the same conclusion respecting the Blake- 
ney plants. He suggests that litorale rather than pungens should 
be the name used. Hackel, the well-known authority on the 
Graminez, still uses the name A. pungens, and to it refers the 
Burlesden Bridge plant, which I thought was nearer repens. 
2880. Asplenium. The remarkable form which appeared so 
intermediate between marinum and Adiantum-nigrum with which 
it grew, I submitted to our well-known fern specialist, Dr. Stansfield, 
who reported it to be only a form of the latter species. Dr. 
Ostenfeld tells us that Christensen also refers it to the same 
plant. This affords another instance of the fact that because a 
