LYCOPODIACEOUS PLANTS FROM THE NORTH OF SCOTLAND. 323 
rocks at Thurso, and which from the remarkable difference in the 
aspect of its lower and upper portions he thus describes as two 
different plants : 
aad ean Athperfestly sire vegetable, more nearly resem- 
as a Club-moss than aught else which I have seen, but which bore 
n its ~ instead of the well- sooner scales of the Lycopodiacea, 
Pa Be s of tubercles, that, when elongated in the profile, as 
epee ee might be mistaken for minute, ill-defined leaves ; 
e other, a smooth-stemmed fucoid, existing on the stone in most 
eases as a mere film, in which, however, thickly-set longitudinal 
fibres are occasionally traceable, and which may be weer distin- 
guished from the other by its sharp-edged outline.”—p. 1 
His drawings, the size of nature, of the sharp- edged finely- 
serrated weed, and that roughened by tubercles, are singularly accu- 
rate, and might have been made from either of the large specimens 
figured on my plate (pl. 187, figs. 3 and 4). 
The ‘ Testimony of the Rocks,” which was posthumously pub- 
lished in the beginnt ing of 185 se includes a spore irene of the 
mportan 
tions to knowledge which te at even fret nee “their place te the 
his ‘‘ Asterolepis of Stromness,” and gave a very characteristic wood- 
cut of the lower portion of the stem, with its branches and foliage 
(figs. 12 and 120). He says:— 
e find the remains of a terrestrial plant allied to Lepidoden- 
dron, and which in size and general appearance not a little resembles 
e 
; and is everyw ov a by 
thickly-set weale-like leaflets, that suddenly narrowing terminate in 
exceedingly slim points. It has, however, _propotio onally a ore: uter 
stem than Lycopodium ; its ri i in pr m more 
rectilinear and thin; and n e of its Stenabek yet found rove the 
fructiferous stalk or r spik e. Face "439, 
Mr. Salter in 1858 described and figured several plant rem 
from the Caithness flagstones (Quart. Journ. Geol. Soe., vol. cies 
p. 74, pl. 5). The L yoopodinceous plant, which had been 0 frequently 
figured by coset he again figured and described under the name 
The specimen figured is now in the Museum of Practical Geology, 
Jermyn Street, and the cou Sorat as acquired by the British 
Museum as a portion of the eco collection 0 of Old Red Sandstone 
plants belonging to the veteran naturalist, Mr. Peach. The frag- 
es, . y 
Salter, who supposed theta to be the rootlets of Coniferous plants, the 
wood of which he had obtained from the same locality. A less 
perfect specimen of the same plant he figured (L.e., pl. 4, Ae: 8) ona 
