92 | UNITED STATES AND MEXICAN BOUNDARY. 
grassy plains between Monterey and Santa Barbara, ee Parry. Пт. Stillman has de- 
tected a second species of this genus.* 
TUCKERMANIA MARITIMA, Nutt. in Trans. Amer. Phil. Soc. 7, p 363; Torr. & Gray, l. c. San 
Diego, California ; common near the beach all around the bay, Ин: ; Parry. It has been 
introduced into the gardens from seeds gathered by Dr. Parry, and is a very showy plant. 
„ ÑANVITALIA Авквті, Gray, Pl. Fendi. p. 87. Stony hills, Cobre, New Mexico; Bigelow, 
Wright, Thurber. 
SANVITALIA TRAGIZFOLIA, DO. Prodr. 5, p. 628. On the Rio Grande above Presidio ; Schott. 
OLIGoGYNE TAMPICANA, DC. Prodr. 5, p. 529. Eagle Pass, Santa Rosa, etc., on the Rio 
Grande ; Bigelow, Schott. 
XIMENESIA ENCELIOIDES, Cav. In various forms, especially var. cana. From the lower Rio 
Grande to Cobre and the Gila. 
2» VERBESINA PODOCEPHALA, Gray, Pl. Wright. 2, p. 92. Sonora, near Santa Cruz, Wright. 
Sierra west of Santa Cruz and Tucson; Schott. This is nearly related to V. pedunculosa, 
Schultz, Bip. (Actinomeris pedunculosa, DC., Verbesina capitaneja, Nees); but that has the 
leaves decurrent on the stem. 
~ 
VERBESINA VIRGINICA, Linn. var. (V. microptera & V. polycephala, DC.) Lower Rio Grande, 
etc.; Schott. 
ZEXMENIA TEXANA, Gray, Pl. Wright. 1, p. 112. Wirtgenia Texana, Schultz, Bip. in Seem. 
Bot, Herald, p. 304. On the San Antonio, Pecos, San Pedro, and the Rio Grande ; Bigelow, 
Parry, etc. Dr. Schultz, apparently with reason, has separated this from Zexmenia, and has 
referred it to his African genus Wirtgenia, on account of a semilunar or roundish squamula 
appressed to the base of the achenium on each side, and indeed adherent to it. Here it is of 
soft fleshy texture when in good condition, but it dries up at length, leaving only a vestige. 
Dr. Schultz has overlooked the fact that the plant (varying greatly as to the wings of the ache- 
nium and the awns of the pappus) is pretty clearly Wedelia hispida, H. B. K., which specific 
name may claim to be restored. A specimen from Schultz, gathered by Schaffner, in Mexico, 
near Tacubaya, is the same as a plant cultivated in the Jardin des Plantes in the year 1815. 
ZEXMENIA BREVIFOLIA, Gray, Pl. Wright. 1, p. 112. Mountains, etc., on the Rio ч at 
the great cañon, Eagle Pass, Rio Concho; Bigelow, Parry, Schott. 
SPILANTHES NUTTALLII, Torr. & Gray, p 1, 2, p. 356, var. Western Texas, San Felipe, Pie- 
dras Pintas, Zocate creek, Los Moros; etc.; Bigelow, Schott. 
FLAVERIA CHLORJEFOLIA, Gray, РІ. Fendi. p. 88. Comanche and Leon Springs, southern 
Texas ; Parry, Bigelow. 
FLAVERIA CONTRAYERBA, Linn. Along the lower Rio Grande ; Bigelow, Parry. 
— SARTWELLIA FLAVERLE, Gray, Pl. Wright. 1, p. 122. Rio Cabeza, Texas; Thurber. Plain 
below San Carlos, Cohahuila ; Schott. 
2 LEPTOSYNE ÑSTILLMANII (sp. nov.) : foliis inferioribus oppositis, omnibus trifidis seu pinnato-5-partitis, segmentis rhachi 
que planis anguste linearibus; squamis involucri externi oblongis; corollis haud annulato-barbatis ; appendicibus styli fl. 
disci haud apiculatis ; acheniis glaberrimis, radii apiculatis margine fungoso subrugoso cinctis. In the valley of the Upper 
Sacramento, Dr Stillman. . 
The single specimen collected is a span high, with shorter and coarser leaves than L. Douglasii, and smaller heads. | 
The scales of the exterior involucre are broader and shorter, rather fewer, and externally sparingly bearded at their base. 
There is only a faint indication of the bearded ring, so manifest on the tube of the disk-corollas of L. Douglasii; nor do the 
achenia show a trace of the capitate hairs of that species. The appendages of the style, moreover, are very obtuse, and 
destitute of the abrupt and sharp tip. Still it is an undoubted congener of L. Douglasii. 
— LLLA tss 
