ROSE—MEXICAN AND CENTRAL AMERICAN PLANTS. Q87 
species and are made from the type sheets. That there may be no 
confusion as to the specimens used, all necessary data regarding them, 
are brought together in the following table: 
Data concerning specimens used for illustrations. 
Plate. ) Name of species. Locality. | Collector. No. ns ‘rum 
WO. 
LXIII | Carex peucophila ........+- | Popocatepetl, Mexico.) Rose and Hay -) 6994 | 1901 | 895788 
LXIV |) Ornithocarpa fimbriata..... — Constancian, Jalisco .) Pringle......... 8654 | 1902 | 896774 
LXV | Synthlipsis lepidota ........ Tula, Hidalgo........ | Pringle......... 6899 | 1898 | 396772 
LXVI | Ribes rugosum......------- Santa Fe, Valley of | Pringle......... | 6999) | 1899 | 461280 
Mexico. | ; | | 
LXVII | Kosteletzkya malvaviscana .| Los Cuevas, Mexico .. Hartman....... 165 | 1894 306138 
LXVIII | Hosteletzkya violacea....... _ Jojutla, Morelos...... Pringle......... 8663 | 1902 | 396718 
LXIX | Taonaho oocarpa .......... | Near Ocuilapa, Guer- Nelson .......-. 2994 | 1895 | 284474 
| rero. 
LXX Begonia unifolia..........- Jojutla, Morelos...... Pringle ......... 8690 | 1902 | 396783 
LXXI_ Conostegia minutiflora ...-. Piunia, Oaxaca ...... Nelson ........- 2493 | 1895 | 347475 
LXXII |) Monochaetum pringlet ....- Sierra de Tepoxlan, Nelson .......-. 8359 | 1890 | 871918 
| Morelos. 
Fig. 14 | Taonabo sylvatica. ......... | San Miguel Sollado, | Pringle.......-. 8169 | 1899 | 342858 
| Vera Cruz. | | 
16.) Eryngium grande ......-+- Nevada de Toluca....! Rose and) 7938 | 1908 | 451556 
Painter. | | | 
17, Eryngium painteri......--- Sierra de Pachuca, Rose and | 6723 | 1903 | 450279 
| Hidalgo. Painter. 
18 | Eryngium piluarioides ..... Hidalgo .........-...- Pringle......... | 8948 | 1904 | 469281 
19 Eryngium pringlet......... State of San Luis Po- Pringle......... | 3759 | 1891 | 461279 
| tosi. | | 
POACEAE. 
SOME GRASSES FROM POPOCATEPETL. 
In 1901 I made two trips to Popocatepetl, which lies on the south- 
eastern rim of the mountains bordering the Valley of Mexico. On 
August 8 and 9 I made my first trip, spending one night at the timber 
line and going the next day up to the base of the snow cap, which was 
then at about 14,600 feet. On August 21 I made a second trip, con- 
fining my labors to the base of the mountain and not going higher 
than about 10,000 feet. During the trip I collected among many 
other things 15 species of grasses, which have been named by Mr. 
Elmer D. Merrill, formerly connected with the United States Depart- 
ment of Agriculture, but now botanist in the government laboratories 
of the Philippine Islands. 1 wish to call especial attention to two or 
three of these grasses, as they are of considerable interest. 
Sporobolus wolfi’/, a species heretofore only known from one station 
in Colorado, was found on Popocatepetl just below timber line grow- 
ing under pine trees (Pinus hartwegiana), This is one of the smallest 
