4 s /.<//, /■ Extinct Floras of North America, 



least specifically different from the European ones; for Dr. II. V 

 ciraens nowhere exhibit any very near approach to those fig- 

 ured b) I rnger I i. c. I, which are much broader, more closely set. 

 apparently on permanent branches, and present a very different 

 aspect Prof. Eeer has perhaps sufficient proof of the identity 

 of all the forms that he includes under the name of S. Langs- 

 dorJUi but the light, feathery and deciduous? foliage, indicated 

 by the impressions before us, could hardly, under any circum- 

 stances, have assumed the form of " Taxites Langsdorfiiy\ as 

 given in CTnger's beautiful work to which I have referred, 



Since the above notes were written, Prof. Heer has described 

 a collection of fossil plants, made at Nanaimo, Vancouver's Isl- 

 and, and at Buzzard's Bay, British Columbia, and forwarded 

 to him by Dr. Hooker. Among the plants from Nanaimo are 

 several specimens which he regards as identical with his > 

 quota Langsdorfii, but this seems hardly possible, as it is clearly 

 proven from the facts published by me in the Bost. Jour. Nat. 

 Hist (Vol. ii. No. 4, L863), that the plant beds of Nanaimo arc- 

 all of Cretaceous age. The planl figured by Prof. Heer is ap- 

 parently my Taxodium cuneatum, and has generally shorter 

 and more spatulate leaves, with narrower bases than those of 

 Sequoia Langsdorfii. The plant bed- of Buzzard's Bay, like 

 those of Birch Bay, and pari of those of Bellingham Bay, are 

 apparently Miocene. 



Formation and Locality. Miocene strata, Banks of the 

 Fellowstone River. (Dr. Hayden.) 



Imelanchier »imili* in. Bp.) 



Li aves petioled, ovate, obtuse or acuminate, rounded or slightlj 

 cordate at the base; margin coarsely toothed, excepl Dear the 

 petiole, where it is entire; nervation pinnate, delioate; medial 

 nerve straight, 6-7 pairs of lateral nerves 4h erging from the midrib 

 al : 1 1 ■ angle of aboul 10 . slightly cun ed upward, especiall) near the 

 summit, the upper ones nearly Bimple, bul giving off a perceptible 

 branch near the summit on the lower side, which runs inl > the next 

 tooth below. The lower pair Bpring from the extreme base of the 

 leaf, are strong and simple, and strike the margin where the denta* 



