72 



Char a Springerae 



Fruit (sporostegium) elliptical-ovoid in shape, with rather 

 broad point of attachment, and obtuse apex, nearly twice as long 

 as broad (0.65 ± mm. x o 40 mm.); number of spirals as observed 

 in side view 12 or 13; cells even or somewhat furrowed, ob- 

 scurely punctate. 



The "fruits" are present in considerable numbers, but they 

 are very fragile and difficult to remove. For this 

 reason it is hard to measure them with any degree 

 of accuracy, but approximately they are 0.65 to 

 0.70 mm. in long, and about 0.40 mm. in short, 

 diameter. 



This form is separated at once from Chara com- 

 pressa Knowlton* by its shape, and from C. Stan- 

 toni Knowlton f by its size, shape and the charac- 

 ter and direction of the spirals. 

 The exact locality whence these specimens came is Arroyo 

 Pecos, Las Vegas, New Mexico. The beds contain other frag- 

 mentary plant remains as well as a number of interesting animal 

 remains. Professor Cockerell has kindly supplied me with the 

 following section of the Pleistocene beds at this locality : 



Upper Zone. 



O 



ca 





 in 

 — 



03 



O 



u 



Land shells only, mostly Pupidse. 



Middle 



or 



Charcoal 



Zone. 



2 or 3 distinct layers of charcoal or charred wood, with some 

 not much charred (Pinus?). Great quantities of fresh water 

 shells, especially Physa humosa and Sphaerium magnum. 



Various bones, including Equus with teeth agreeing with E. 

 Scoitii Gidley. 



Lower 



or 



Clay Zone. 



03 

 U 



Clay with Chara in great abundance. Leaves of Salix ? 

 Pyramidula Hemphilli var. is very common. 



Fresh water shells of several species not Sphaerium magnum. 



Professor Cockerell also sent me a number of fragments of wood 

 and leaves, but the latter are so small and so poorly preserved 

 that it was not possible to make them out. It was suggested that 

 they belong to Salix and it is not improbable that they should be 

 so referred. No sections of the twigs were made, but they are 

 evidently coniferous, and may well have belonged to Pimis. 



U. S. National Museum, February 25, 1902. 



* Hot. Caz. 13 : 156. 

 | Op. Cit. 18 : 141 



