1898.] 



NATURAL SCIENCES OF PHILADELPHIA. 



47 



Equisetum arvense L. 



No. 31. Growth of the sand 

 bank near the banks of the river, 

 taken the 10th of Aug., 1804. 

 Sand banks of the Missouri. 

 Aug. 10, 1804. 

 Aspidium spinulosum Sw. 



Poly podium species. Fort Clat- 

 sop. June 20, 1806. 

 Lomaria Spicant Desv. 



Fort Clatsop, June 20, 1806. 



Hypnum Oreganum Sull. 



A species of moss from Fort 

 Clatsop. June 20, 1806. (Iden- 

 tified by Mrs. Britton). 



Bazzania trilobata (L.) S. F. Gray. 



A moss used by the natives as 

 a yellow dye ; grows on the pines 

 of the Rocky Mountains. July 

 1, 1806. (Identified by Mrs. 

 Britton). 



Egregia Menziesii (Turn.) Aresch. 

 (Phyllospora Menziesii). 



Fucus. From the mouth of 

 the Columbia River on the Pa- 

 cific Ocean, Nov. 17, 1805. 



[Loose label with Pyrvs sam- 

 bucifo Hits f but date different]. 

 No. 24. Found the 4th day of 

 Sept., 1805. A small growth 

 only, rising to the height of 15 

 feet. Moist situations it seems to 

 prefer; it is a handsome growth. 37 



Blechnum boreale Pursh (not 

 Willd.), Fl. 669. On the north- 

 west coast. M. Lewis. 11 . Aug. 

 v. s. in Herb. Lewis. 



87 Sorbus microcarpa Pursh. 



"On the tops of the highest peaks and mountains, June 27, 1806." Com- 

 pletely eaten by insects, except the stem, pedicels and 2 leaflets. A label in 

 the same sheet, in Captain Lewis' handwriting says, "found on the 4th day of 

 September, 1805. A small growth, only rising to the height of 15 feet ; moist 

 situations it seems to prefer. It is a handsome growth.'' 



