36 FOSSIL PLANTS IN NATIONAL MUSEUM. 



CYPERACE^. 



CARICE^. 



133. Carex, leaves of. 



Sitka, Alaska; E. W. Nelson, collector ; one specimen ; Museum num- 

 ber, 2309; lot number, 210. 



134. Cyperites borealis? Heer. 



Applegarth Cafiou; A. Hague, collector; one specimen; Museum 

 number, 2312 ; lot number, 112. 



135. Cyperites canaliculatus Heer. 



Southwest of Strahlenberg, Utah ; C. D. Walcott, collector; one speci- 

 men ; Museum number, 2313 ; lot number, 196. 



136. Cyperites, spec. ? 



Bridgetou, K J.; J. B. Marcou, collector; one specimen; Museum 

 number, 2314 ; lot number, 207. 



IRIDACE2B. 



miDEiE. 



137. Irites Alaskana, n. sp. 



Cape Lisbourn, Alaska, Henry D. Woolfe, collector. 



Leaves thickish, linear-lanceolate, tubulose at apex, narrowed to the 

 base, falcate, aequi-nerved, medial nerve obsolete, lateral, broad, equal. 



The leaves are comparatively narrow ; the best preserved, apparently 

 nearly entire, is 13 centimeters long, 1^ centimeters broad in the 

 middle; nerves, about 1 millimeter in width, not very prominent, equal, 

 not separated by intermediate veinlets, very distinct ; surface smooth, 

 covered by a thin pellicle of coaly matter, some fragments showing the 

 tubulose point and base. The median nerve is slightly marked in 

 places. 



Comparing these leaves with those of cultivated species of Iris, the 

 essential characters, nervation, thickness of leaves, &c., are the same. 



Four specimens ; Museum number, 2320 ; lot number, 204. 



NAIADACE-aJ. 



138. Caulinites Beckeri, u. sp." PL I, fig. 3; PI. II, fig. 2-4. 

 Clear Lake, Cal. ; G. F. Becker, collector. 



Khizoma horizontal, cylindrical or flattened, marked all around or 

 articulate by the scars of leaves (?) in parallel short close rows, emit- 



* April 2, 1887.— Since the above was in type, the following letter has been received 

 from Mr. G. F. Becker, the collector of the specimens, which seems to show that it is 

 the modern Tule, Scirj)U8 lacuatria L. \_Scirpxi8 validua Vahl.], in a state of calcification 

 or incrustation : 



Department of the Interior, 

 United States Geological Survey, 

 Washington, D. C, February 28, 1887. 

 Prof. Lester F. Ward : 



Sir : The roots sent you from Sulphur Bauk, Clear Lake, California, occur in mod- 

 ern lake beds close to an outflow of basalt and to the edge of the present lake. 



