PYREXOMVCETES. 



163 



centric surface markings. Common on hoth 

 the loaf stalks and rays of Sdhalitoi (jraijanus 

 Lcsqucreux and named rrt)m its resemblance to 

 tliose species of the e.\istin<i <i;enus Pestalo/.zia 

 !)(■ \ot which make tiieir iionic on the foliage 

 of members of lii(> palm family. 



Tlionj^li extencknl comparisons with ])revi- 

 ously (h'scribed fossil forms whicii apjx'ar simi- 

 lar is without nnicii value, atti'ution may be 

 called to tiie resemblance of tiie jircsent form 

 to GraphioUtes s(iI)<iI((js whicii infests S(ih(iHt(x 

 suessionensis from tiie .Sparnacian of tlie Paris 

 Basin. Fritel,' its descriljcr. compares it witli 

 species of the existing genus Graphiola (Basi- 

 diomj'cetes). 



Occurrence. — HoUy Springs sand, Oxf(n'd 

 Gully, Lafayette County: Gr'uada formation, 

 Grenada, (irenada Count v. Miss, (collected l)v 

 E. \V, Perry), 



Collection. — V. S. Xatiiiiial Museum, 



C-EXOMYCES AXNL1.AT.\ BlUTV, 11, sp. 

 Plate XLV. fi<;uri" 17b. 



Description. — Peritliecia circular in oulline, 

 1 millimeter to o millimeters in diameter, that 

 sliow a central, somewhat papillose ])ortion sur- 

 rounded by a doubles well-deliiied regular mar- 

 gin, on a leaf of Cassia emarginata Berry, shown 

 in J'late XLV, figure 17b. This form is strik- 

 ingly different in appearance from the other 

 forms referred to Csenomyccs. Its reguhir cir- 

 cular form and annulate^ margin serves to dis- 

 tinguish it from C;rnonii/c(s ca.stiicf Berry, which 

 has been found infesting this same species of 

 Cassia. 



Occurrence. — Lagrange formation (in beds of 

 Wilco.x age), H miles west of Grand Junction, 

 in Fayette County, Tenn, (collected bv E. W, 

 Berry"), 



Collection. — U. S. National Museum. 



C^NOMYCES CASSi.E Berry, n. sp. 



Plato IX. fiiTure I. 



Descri jdion . — Peritliecia aggregated, cir- 

 cular in outline, more or less stellate, thick, 

 averaging L7.5 millimeters in diameter. This 

 form is found in abundance on the leaves of 

 Cassia emarginata Berr\-. It has a character- 

 istic appearance decidedly different from that 

 of Cxnomi/ces annulata Berry, which infests 

 this same species of Cassia. 



' Frltel, p. II., Soc. g<!ol. France Mim. 40, p. 12, pi. 1, fig. 12, 1910. 



Occuirence. — Lagrange formation (in b(>ds 

 of \Vilcox age), H miles west of Grand Junc- 

 tion, in Fayette County, Tenn, (collected by 

 L. C. Glenn). 



Collection. V . >. National Museum. 



C^xoMY'CES .MYUT.K Bcrrv, n, sj). 



Plate .\(', li-un- 7. 



Description. — Perithecial masses whicii form 

 irregularly oval spots that have a d(>pressed, 

 sonunvhat granulose central area and a narrow 

 laiscnl margin, ^'a^iabl(wn outline and 1 milli- 

 meter to 2 millimeters in diiuueter, Situatinl 

 on the. leaves of Miircia Inntonensis Berry, as 

 a rule away from the midrib or larger veins. 



Occurrence. — Holly Springs sand, Oxford 

 Gully, Lafayette; County, Miss, (collected bv 

 E. W. Berry). 



Collection. — \J. S. National Museum. 



Phylum PTERIDOPHYTA. 



Class LEPIDOPHYTA. 



Order LYCOPODIALES. 



Family LYCOPODIACE,a;. 



Genus LYCOPODITES Brongniart. 



Lycoi'odi IKS ? Koi.iGxrricus Berry, n, sp, 



Plate IX, fiiiure.s 4 and ."). 



Description. — Plants slender and elongated, 

 prolnibly pendulous, dichotomously branched, 

 stems covered with tiny appi-e.ssed ))ointed 

 leaves. Stems not more than 0.17 millimeter 

 ill diameter, and leaves not over ()..'5.'5 milli- 

 meter in length, 



I was at hrst disposed to refer this uni(jue 

 specimen to the form genus Muscites, but the 

 (dongated dichotomous stem, combined with 

 appearances suggestive of vascular plants, led 

 nio to refer it to the form genus Lycopodites. 

 This conclusion was strengthened by the asso- 

 ciation of the specimen with a fruiting speci- 

 men which appeai-s to belong to the same 

 plant. This at first also suggests a moss, Imt 

 the strobilar part shows small triangular 

 markings suggesting scales. The fruiting speci- 

 men is about millimeters in length, and the 

 feature which I interpret as the strobilus is 

 about L7.5 miUimeters in length and is borne 

 on a naked peduncle about 2. .5 millimeters in 

 length, thus much less elongated than most 

 Lycopodiales. The specimens are preserved 



