TRICHOMANES RADICANS. 293 
spreading branches, and erecto-patent fruit-pedicels; G. viridulum, 
Jordan, has diffuse spreading or deflexed stems, subpellucid linear-ob- 
long leaves, a many-flowered panicle with spreading or deflexed lower 
branches, and very small flowers; and G. rigidum, Vill., has erect 
stems with numerous sterile branches below, linear-oblong opaque 
leaves, often spreading or deflexed, a panicle with erecto-patent upper 
and spreading lower branches, looser than in G. erectum and with 
shorter pedicels. 
This will show how closely the extremes of the series are linked to- 
gether by intermediate stages of gradation. Professor Babington sug- 
gests that the Cleves plant may be G. album, Vill, a plant usually 
quoted under G. erectum, but described as having reflexed leaves. It 
is evidently not the plant of Lamarck, who has the right of priority 
over the name. If E. B. 1673, “ G. Mollugo,” be really G. elatum of 
Thuillier, it cannot be considered as representing the plant satisfacto- 
tily, for, as already pointed out in this, the panicle is wide-spreading - 
and very numerously flowered, the separate corolla-lobes being conspi- 
cuously smaller and narrower than in erectum, and not so pure a white. 
The * English Botany’ description assigns to erectum weak and flaccid 
stems, which is not the case with the genuine plant. There is a cha- 
racteristic figure of a panicle of G. elatum, and. also of the insubricum 
Variety or subspecies, in Reichenbach’s ‘ Icones Flore Germanice,’ vol. 
Xvii., but that given under the name of “Mollugo” represents one of 
the plants intermediate between this and erectum. The plant given 
under this latter name has reflexed leaves on the lower part of the 
stem, and a few- (not more than two-dozen-) flowered panicle with 
erecto-patent branches. 
TRICHOMANES RADICANS. 
T have just been informed by Mr. Walter Gast, of Glasgow, that this 
Tare Fern has been recently found in the northern half of the Isle of 
Arran, in Scotland, by Mr. George Combe, of Glasgow. He has sent 
4 small specimen to me which is very like that found by Dr. Richard- 
Son in Yorkshire; it is clearly the true plant. The cells are interest- 
Mg, being irregular in shape, but mostly oblong, and have very broud 
