26 .1 W I'AWSOX ON CRKTACEOUS AND TEJJTIATJY FLORAS 



14. ^llUVli^HTK^< Cor.D.VlltiK-MlS, S. N. (IMS'. 2'2.) 



All in>h ov inoiv in width when lull gTowii. raialld veins (lisi;ini liuui fiuli other 

 about 5 niillinii'lres, and with some intervenius? stria?, llosomhles /' ('rrtareoiis, Lesq., from 

 Nebraska, l)nl dillers in venation. Ti> the naked eye tliis leal' very closely resembles 

 Cnn/'iUcs bi>r<issiYi>liii of the coal lornKitioii. 



Colleited l)y Mr. James Iviihard.son, at Nortli Saanieh and Nanainio, and l>y Dr. G. M. 

 Dawson, at Baynes' Sound. 



l.j. S.viJAi-l.Mi'Kia.vLi.s ^!. X. (Fig. 23.) 



Siibiil, Sp., Newberry, Boston .Tcuirnal, Vol. VII., No. 4. 

 Midrib elons'ate : more tliaii l<i rcntiuielres loim- and l.S wide; eoarsely striate 

 loniritndinally, perhaps in eonsequenee of pressure. L-af havinii' folds varyinii' from S to 

 15 millimetres in l)readth, at anii'le of o;V to tJO^ at base, more aente upward. Nerves line, 

 30 to CO on each fold, five or six on ea-'h side of the middle bein<i- coarser than the others. 

 General li>rm and mari>in unknown. Imi must Jiave l)een one to two feet or more in 

 diameter of blade. This is undoubtedly the >^abal mentioned by Le.squi'reux and New- 

 berry, as found in frau'iuiMits in collections from "T^anaimo. At the Ilarwood colliery on 

 that island Mr. IJichardson obtained larg(^ leaves, but on a shale so brittle and jointed that 

 it was impossii)le to secure ilniu enlin\ 



16. Salix pacifica, S. N. (Fii>r. 24.) 



Leaf (jlongate, pointed at botli ends. Apex somewhat a])nii>t, base obliqui'. Length 

 8.5 centimetres, breadth in middle 1.3 centimetres. ^lidrib conspicuous ; mavgiu entire. 

 In one specimen a stouji of leaves appears attached to a slender twis'. 



Collected by Dr. G. M. Dawson, at Daynes' Sound. 



17. ropULUS ItlHiMiiolDKA. Les<p-. * 



Iji'squereiix. American Journal ol' Science, Vol. XXVII. p. ;!(iii. 



Originally described by Lesquereux from specimens collected by Dr. John I^lvans at 

 Nanaimo. AVas described as " rhomboidal, with the margin irr(>gularly toothed aliove and 

 entire near the slightly decurrent base. Lateral primary veins diverging at an acute angle 

 like the secondary ones, and ascending to both corners of the rhomb of the leaf, all strongly 

 marked with scarcely visilde percurrent veinlots." It is a leaf with the venation on the 

 same plan with that of the modern P. ^nintli(k/if(i/(i. 



Collected by Mr. J. Ki.liaidson. at Newca.stle Island. 



18. r<iPDriUS PROTozARAriiii, S. N. (Fig. 25.) 



Closely allied to /'. Znt/ailiii, of lleer. in its style of venation and crenated mar-rin. but 

 with fewer and more delicate veins and l)roader form. 

 Colleited by Mr. J. liichardson, at Newcastle Island. 



lit. POPITLUS THINKIIVI.-^, S. N. 



A poplardike leaf, with three slender v«'ins forking upwards. V.-ry i)ecnliar and 

 diHtinctivo, and repn'sented l)y several spiM-imens but ail iniperfi-ct al the margins. 



f'olleeted al Nanaimo l>y Mr. James Itichardson, ami at Haynes' Sound by Dr G M. 

 Daw.'ion. 



