33 



rounded-reniform, 4-6 cm. broad, glandular granuliferous be- 

 neath, ciliate on the margins and less so on the veins beneath, 

 mostly y-lobed, the lobes broadly rounded-ovate, and dentate 

 with broadly ovate teeth; stem leaves, if present, smaller and 

 with more acute lobes and teeth; inflorescence rather narrow, 

 branched below, the branches short; hypanthium obliquely cam- 

 panulate, green, with the sepals about 8 mm. long; sepals unequal, 

 the upper slightly longer, oblong, rounded at the apex, ciliolate; 

 petals white, broadly ovate or spatulate, slightly exceeding the 

 sepals, crenulate stamens as long as the sepals. 



This species is most closely related to H. scabra Rydb., but 

 differs in the more rounded lobes and teeth of the leaves, the 

 more open and shorter flowers, shorter sepals, shorter, broader 

 and pure-white petals. 



Type collected on the northeast slope of Snowy Mountain, 

 Pendleton County, West Virginia, opposite Simmons' farm, 

 June 17, 1925, P. A. Rydberg go26 (herb. N. Y. Bot. Gard.). 



Explanation of plates 



Plate i. Aconitiim vaccarum Rydb. n. sp. 



I. Upper parts of plant. 2. Basal leaf, 2/j, nat. size. 3. Hood (upper sepal). 

 4. Lateral sepals. 5. Lower sepals. 6. Petals. 7. Stamens and pistils. 8. Sta- 

 mens, separate, of different series. 9. Pistils, nat. size. 10. Young carpels, 

 X iK- 



Plate 2. Heuchera alba Rydb. n. sp. 



I. Scape. 2,3. Basal leaves, X %. 4. Flower. 5. The same laid open, X i3^. 

 6. Petals. 7. Stamens, the uppermost ones longest, X 3. 



A NEW PALM FROM THE MISSISSIPPI DELTA 



John K. Small 



"It is also in the lower portion of this belt [Coastal Plain of 

 Texas] (where the palm tribe is represented by the Chamaerops 

 Palmetto) that the Palmetto attains a growth as gorgeous even 

 as in the lower Mississippi; it extends on the Rio Bravo [Rio 

 Grande] up to about 80 miles from the gulf." 



"In addition to the Palmetto common to the lower portions of 

 these two great rivers, . . ."* The reference to a gorgeous 

 growth of cabbage-trees along the lower Mississippi River has 



* Arthur V. Schott, in Report, United States and Mexican Boundary Survey i^: 

 44. 1857. 



