THE LOWER CARBONIFEROUS ROCKS OF NEWFOUNDLAND. 399 
pinna very large; divisions alternate, open or curving back from the narrow naked 
rachis ; pinnules large, half round at the apex, contracted and narrowed to the decurring 
base; nervation of the genus.” I have not seen any specimens of this species, but, 
judging by the figures published by Lesquereux and Dawson, I should be inclined to 
substitute the following diagnosis :—Leaves of medium size, 3-5 cm. long and up to 
4 cm. across, with long sheathing bases, arranged spirally on an axis, flabellate or 
obovate, ? undivided, probably rounded at the apex. Nervation delicate, nerves fairly 
close, with frequent dichotomies. 
Type-specimens.—' The whereabouts of the type-specimens is unknown to me. 
ftemarks.—The fig. 7 of pl. 49 of Lesquereux’s ‘Coral Flora’ certainly suggests 
. that we are here concerned with an axis more or less completely sheathed by the basal 
portions of leaves, as in P. flabellatum (Lindl. & Hutt.). The leaves appear to be some- 
what similar to those of P. Williamsoni, Nath. It does not appear to be certain whether 
the notched apices shown in Lesquereux’s figures may not be due to imperfections in 
the preservation. 
The specimens figured by Dawson * in 1862 and 1871, from the Upper Carboniferous 
(formerly regarded as Devonian) rocks of St. John, New Brunswick, are, as Lesquereux 
has pointed out, a distinct species, and in my opinion should be referred to another 
genus. 
Distribution.— Pennsylvania, Carboniferous (? Lower), Vespertine Red Shale, below 
‘Mauch Chunk; Devonian, Catskill Red Shale, Montrose; Canada, Upper Devonian, 
Scaumenac Bay, Dalhousie. 
5. PSYGMOPHYLILUM WILLIAMSONI, Nathorst. (Pl. 42. fig. 4.) 
1894. Psygmophyllum Williamsoni, Nathorst, K. Sven. Vetens.-Akad. Handl. vol. xxvi. no. 4, 
p. 15, pl. 2. figs. 1-2. 
Diagnosis.— Frond of medium size (exceeding 10 em. in length and 9 em. in breadth), 
broadly flabellate, margins curved, gradually contracted at the base. Apex unknown. 
Nerves fairly fine, radiating from the base with occasional dichotomy. 
Types.—In the Paleeobotanical Museum of the Academy of Science, Stockholm. 
Remarks.—This species is at present known from two fragments of detached mno 
Which, through the kindness of my friend Professor Nathorst, I have had an = d 
of seeing in Stockholm. In neither case is the apex preserved, and it is impossi i 
say whether the leaf was divided distally. The feature which especially distinguis 7 
this species is the fineness of the nerves, which, as Professor Nathorst has ne te 
are more delicate than those of P. flabellatum (Lindl. & Hutt.). The shape of the lea 
agrees best with that of P. Brownii (Dawson) or P. majus, Arber. ia age 
It would seem possible that the fragment of a leaf named : ie gee i es 
B pl. 1. fig. 12) Cyclopteris sp. from the Devonian x ER BANS 
Spitzber gen, may be also a portion of a leaf of Psygmophy ium, thoug 
| * Dawson (762), p. 319, pl. 15. fig. 33; (71), p. 46, pl. 16. figs. 188, 185 a. ys 
SECOND SERIES.— BOTANY, VOL. VII. 
