18:} 



and Gray, who retained the name ovata for the plant described 

 by ElHott, and referred Walter's description doubtfully to Cacalia 

 tubcrosa Nutt., a species chiefly confined to the Mississippi valley, 

 as far as we know at present. In 1892, MacMillan (Met. Minn. 

 555) wentastep further and formally substituted Walter's specific 

 name for Nuttall's tubcrosa, transferring it at the same time to 

 Senccio, in which the Orif^inal species {citriplicifolia) was placed by 

 Hooker. 



Ikit C. tubcrosa is not known to range farther east than Ala- 

 bama, so it is highly improbable that Walter ever saw it. His 

 description is rather unsatisfactory, as usual, but what there is of 

 it will apply much better to Cacalia sulcata Fernald,* a recently 

 described species allied to C. tJiberosa. This, too, has a restricted 

 range, being known as yet only from Southwest Georgia and 

 West Florida, but the chances of its being found hereafter in the 

 vicinity of Walter's home are doubtless greater than in the case 

 of the two comparatively well-known plants just discussed. 



From the foregoing it is pretty evident that the plant described 

 by Elliott is now without a name, so I have provided one for it 

 below. 



A third member of the laiiccolata group is common in moist 

 pine-barrens in some of the " wire-grass " counties of Georgia 

 (see ToRREYA, 5: 114, second line from bottom). It differs 

 from M. lanceolata in having shorter leaves, which are not at all 

 glaucous but yellowish-green throughout, and being scarcely 

 more than half as tall. Its range seems to be entirely distinct, 

 for I have seen it only in the Altamaha Grit region, and J/. 

 lanceolata only in the flat countiy south and east of there. A 

 plant described by Elliott from specimens sent from Louisville, 

 Georgia, by James Jackson, and doubtfully referred to Cacalia 

 lanceolata, was probably the same as mine from the Altamaha 

 Grit region. Louisville is not in this region, but Mr. Jackson 

 may have collected the Mcsadoiia some distance south of Louis- 

 ville, as he is believed to have done in the analogous case of 



* P)Ot. Gaz. 33 : 157. 1 902. See also Bull. Torrey Club 30 : 342. 1903 ; 31 : 

 27. 1904. Mesadenia dentata Raf. (New Y\. N. A. 4 : 79. 1836), described 

 from Alabama, is possibly synonymous with this. 



