...Sandstone of Scotland, which still continues. Dawson describes Psilophyton princeps as follows : " Stems branching dichotomously, and covered with interrupted...leaves rudimentary, or short, rigid, and pointed, . . . Young 1 Guide to the Geology of Scotland, pp. 118, 119 (1844). 2 Quart. Journ. Qeol. Six., vol....

...134.)—JGS, XV, 479; Fig. 1. Ibid. XVIII, 315. Ibid. XIX, 46.—LD, MD, Gaspe"; also Upper Silurian. Stems branching dichotomously, and covered with interrupted...represented by minute punctate scars. Young branches circmate; rhizomata cylindrical, covered with hairs or ramenta, and having circular -areoles irregularly...

...134.)— JG 8., XV, 479 ; Fig. 1. Ibid. XVIII, 315. Ibid. XIX, 46.— LD, MD, Gaspi5; also Upper Silurian. Stems branching dichotomously, and covered with interrupted...stems and branchlets sparsely scattered or absent ; i in decorticated specimens represented by minute punctate scars. Young branches circinate; rhizomata...

...134.)— JGS, XV, 479 ; Fig. 1. Ibid. XVIII, 315. Ibid. XIX, 46.— LD, MD, Gasp£; also Upper Silurian. Stems branching dichotomously, and covered with interrupted...numerous and spirally arranged ; in fertile stems and branchleta sparsely scattered qr absent; in decorticated specimens represented by minute punctate scars....

...neighbouring Bay des Chaleurs with its slender stems and creeping, cord-like rhizomes, may be thus described : Stems branching dichotomously, and covered with interrupted...absent ; in decorticated specimens, represented by a minute punctate scars. Young branches circinate ; rhizomata cylindrical, covered with hairs or ramenta,...

...the Geological Society," vols. xv., xviii., and xix., "Report on Devonian Plants of Canada," 1S71. dichotomously, and covered with interrupted ridges....absent ; in decorticated specimens, represented by a minute punctate scars. Young branches circinate ; rhizomata cylindrical, covered with hairs or ramenta,...

...Stems branching 65 Fio. 20. — Sphe•iiophyllum antiquum (Erian, Kew Brunswick). See pp. 61, 67. dichotomously, and covered with interrupted ridges....; in barren stems, numerous and spirally arranged ; iu fertile stems and branchlets, sparsely scattered or absent ; in decorticated specimens, represented...

...Referring to the description of the plants upon which the genus was founded, I find it to indicate "Stems branching dichotomously, and covered with interrupted...and having circular areoles irregularly disposed, giving origin to slender, cylindrical rootlets. Internal structure, an axis of scalariform vessels,...

...Referring to the description of the plants upon which the genus was founded, I find it to indicate "Stems branching dichotomously, and covered with interrupted...numerous and spirally arranged; in fertile stems and branchlots sparsely scattered or absent; in decorticated specimens represented by minute punctate scars....

...with its slender stems and creeping cord-like rhizomes has been described by Dawson as follows : — " Stems branching dichotomously, and covered with interrupted...and having circular areoles irregularly disposed, giving origin to slender cylindrical rootlets. Internal structure : an axis of scalariform vessels,...