DESCRIBED SPECIES OF BOTRYCHIUM 51 
Botrychium Reuteri Payot, Cat. Foug. 15. 1860. 
Northern Europe. Early figured by Breyn, and differing en- 
tirely both in habit and structure from its American congener 
which has been confused with it. 
Botrychium Reuteri Payot = B. RAMosUM. 
Botrychium robustum (Rupr.). 
Botrychium rutacfolium var. robustum Rupr.; Milde, Nov. Act. 
Acad. Caes. Leop.-Carol. 26: 763. pl. 55. f. 9. 1858. 
Kamtschatka, Unalaska. 
Botrychium rutaceum Sw. = B. MATRICARIAE. 
Botrychium rutaefolium A. Br. = B. MATRICARIAE. 
Botrychium Schaffneri sp. nov. 
A stout fleshy plant allied to B. eb/iguum with somewhat com- 
pact glaucous foliage and copious elongated sporophylls. Stems 
2—5 cm. long, stout, fleshy: leaves 10-18 cm. wide by 6-11 cm. 
long, on slender petioles 5~6 or rarely up to 10 cm. long ; lateral 
divisions rather long-stalked, tripinnate ; the terminal larger, some- 
times quadripinnatifid below ; ultimate segments oval or rarely 
lobed and slightly narrowed below, the margins entire, the rachises 
broadly winged, the surfaces bluish glaucous: sporophylls 20— 
35 cm. or more long on stout stalks, the panicles 6-12 cm. or 
more long, quadripinnate. 
Mexico: “In montibus prope San Luis Potosi,” Oct. 1879, 
Schaffner, U (type) K ; San Miquelito Gebirge (San Luis Potosi), 
Schaffner, 25,C (numerous specimens) ; Valle de Mexico, 1875, 
Schaffner, B. 
The plant is considerably smaller, more fleshy and glaucous 
than B. decompositum and is correspondingly more compact in 
growth and has usually shorter petioles. It is much more finely 
divided than either that species or B. obliqguum to which it is some- 
what related. I take pleasure in naming the species after its sole 
collector, Dr. Schaffner, who sent me fine specimens over twenty 
years ago, shortly before his death. 
Borrycuium stLairotium ‘Presi. Rel. Haenk. 1: 76. 1825.— 
California and northward. 
Botrychium Silesiacum Kirschlg. Fl. Alsac. 401. 1855. Not 
known and description not seen. 
Borrycuium simpiex Hitche, Am. Jour. Sci. 6: 103. pl. 8. 1823. 
Botrychium Kannenbergii Kiinsman, Bot. Zeitung, 10: 378. 
1852. 
