1924] Penland,—Notes on North American Scutellarias 79 
cally to be referred to this category occur rather scatteringly on the 
southern edge of the range of S. versicolor, and some of the specimens 
are not distantly related to S. saxatilis. However, Chapman had a 
different plant in mind. The following are taken as representatives. 
Missounr: W. Trelease, no. 721 (M); B. F. Bush, no. 791 (M); K. 
K. Mackenzie, Eagle Rock, September 23, 1896 (M). ARKANSAS: 
E. J. Palmer, no. 4750 (M). A plant collected at Harper's Ferry, 
and answering to the description of S. rugosa, collected at the same 
place, is also included here. 
2]. S. saxaTILIS Riddell. Erect, or somewhat assurgent and weak, 
glabrous or somewhat hairy, 1-5 dm. long: leaves thin, with few 
spreading hairs on the upper surface, obovate or cordate, obtuse, 
long-petioled; the upper crenate-serrate; bracts entire: corolla about 
2 em. long, slender; the upper lip not arched, nearly as in S. versicolor: 
nutlets resembling those of Š. versicolor, but the protuberances some- 
what longer and more acute.—Supp. Cat. Ohio Pl. 14 (1836).— 
Rocky woodlands from Pennsylvania to Kentucky and Tennessee. 
PENNSYLVANIA: J. A. Schafer, Jacobs Creek, Westmoreland County, 
July 20, 1900 (P); C. S. Williamson, Ohio Pyle, August 31, 1905. 
New Jersey: C. F. Parker, no. 6619 (M). DELAWARE: E. Tatnall, 
Wilmington, September 8, 1858. Disrricr or Cotumspra: W. R. 
Maxon, no. 6242. Onto: H. N. Mertz, Steubenville, June 5, 1880 
(P). West VIRGINIA: Mr. & Mrs. E. S. Steele, no. 31 (M). Kex- 
TUCKY: C. W. Short, no. 2 (P). TENNESSEE: A. Ruth, no. 545 (M); 
A. H. Curtiss, no. 2054. 
Var. arguta (Buckley), n. comb. This is doubtfully given rank as 
a varlety of the above. It 1s small, assurgent, with ovate, sharply 
dentate leaves scatteringly pilose, and is confined to the mountains 
of North Carolina and Tennessee.—S. arguta Buckley, Am. Journ. 
Sci. xlv. 170, 177 (1843).— The following represent the plant. NORTH 
CAROLINA: Biltmore Herbarium (G), no. 7171; TENNESSEE: A. 
Ruth, no. 119, 8. 
CoLoRADO COLLEGE, 
Colorado Springs, Colorado. 
EXPLANATION OF PLATES 140 AND 141. 
Nutlets of Scutellaria, about X 25. Fig. 1, S. nervosa; fig. 2, S. parvula; 
fig. 3, S. angustifolia; fig. 4, S. antirrhinoides; fig. 5, S. nana; fig. 6, S. epi- 
lobtifolia; fig. 7, S. lateriflora; fig. S, S. resinosa; fig. 9, S. versicolor; fig. 10, 
S. integrifolia; fig. 11, S. Drummondii; fig. 12, S. tuberosa; fig. 13, S. serrata; 
fig. 14, S. canescens; fig. 15, S. Bushii. 
