FLORA OF THE SHASTA FOUALVTION. 257 



Geyser specimens show that these shoi-ter and hi'oadei' leaflets may he 

 found on tlie hnwv pott ions of leaves which, hifihel' up, have longer and 

 naridwei- leaflets that ai'c of the 1y])ical form of Z. (ircticu.'^. 



/aMITES TEXl'lNKUVIS K( Hit aill(>. 



I'l. l>X\Tli, Fijjs. 2, 8. 



1889. Zamites tcnulmrris Font.: Potoniuc Flora (M(>no,i,'r. I'. S. Gcol. Surv.. \'ol. 

 XV), p. 171. |)i. Ixvii, fig. 1: pi. Ixi.x. Hk- -': [>'• l-^-^. fij,^ 1: !''■ '-^•'^v. lig. .i; 

 |)1. Ix.xvi. tig. 7; ]>!. Ixxviii. lig. fi: |)l. Ixxxiv. lig. 7. 



At ioealities Nos. 1, 9, 12, 18, 19, '20, and 22 a number of fragments 

 occur that strongly suggest identity with Zattiites tenuincrvis Font., 

 one of the most common cycads of the Lower Potomac of \'irginia. 

 At locahty Xo. 2:^ a good specimen was found, that given in PI. LXMII, 

 Fig. 2. This shows the basal portion of a detached leaflet, with a good 

 deal of the remainder, but the tip is wanting. All the characteristics 

 of Z. ti'iiuiiierrh'^ except the auriculate base are shown in this specimen, 

 and there is no doubt that it is identical with the Potomac fossil. Some 

 of the supposed fragments of this plant, found elsewhere, have a decep- 

 tive appearance of strong nerves, which is caused by stripes of car- 

 bonaceous matter that adhere to some of the nerves throughout their 

 length. The specimen shown in PI. LX'N'III, Fig. 3, is from locality 

 No. 12. 



Genus CYCADEOSPFKMIT^I Saporta. 



CvCADEO.'iPEKMlM CALIFORNICrM FoiltaillC 11. sp. 



PI. LXVTIF Fig. 4. 



A single specimen of a nut-like seed was found at locaUty No. 19. 

 It seems to have been of a hard consistency, with a smooth surface. 

 It stands out prominently from the rock. It is o\-ate-elliptical in form, 

 2 mm. wide in the widest portion, and 7 mm. long. It tapers to an 

 acute point and has obscure striie on its surface, which can be seen 

 only with a lens. It seems to be a new species, but tins may not be the 

 case, as seeds of this nature do not usually have j)oints of character 

 sufficient positively to determine their true position. This is the only 

 seed thus far fomid in these collections of fossils from the Shasta group. 



HON' .\j,viu — 05 17 



