6 NORTH AMERICAN FLORA [VorumE 16 
7. Botrychium neglectum Wood, Class Book ed. 2. 816. 1847. 
Botrychium matricariaefolium Milde, Verh. Zool.-Bot. Ges. Wien 19: 123, in part. 1869. Not 
8. matricaviaefolium A. Br. 1843. 
Plant 6-32 cm. high; rhizome slender, erect; bud smooth, entirely enclosed; leaf 
erect, the commonstalk mostly epigean, 4-20 cm. high, the lamina with the upper part 
bent down in vernation, with a stalk 0.2-1.7 cm. long, usually oblong, rarely deltoid, 
acutish, 0.5-7 cm. long, 0.4-3.7 cm. broad, 1-3 times pinnately divided, the primary divi- 
sions oblong or ovate, the segments mostly oblong, blunt, entire or incised ; sporophyl with 
the upper part bent down in vernation, 2-14 cm. long, the stalk often equaling or exceeding 
the lamina, the panicle usually diffuse; spores coarsely verrucose, .03-.04 mm. thick. 
TYPE LOCALITY: Meriden, New Hampshire. 
DisTRIBUTION : Nova Scotia to Pennsylvania, west to Ohio and Saskatchewan ; also in Europe. 
ILLUSTRATIONS: Bull. Torrey Club 30: 49. £.4,5, Hook. & Grev. Ic. Fil. £1. 82 (as B. simplex, 
left hand figure only); D.C. Eaton, Ferns N. Am. pl. 17, f.9-12 (as B. matricariaefolium); Britt. 
& Brown, Ill. Fl. f. 4 (as B. matricariacfolium). 
8. Botrychium lanceolatum (S. G. Gmel.) Angstr. Bot. 
Notiser 1854: 68. 1854. 
Osmunda lanceolata S. G. Gmel. Nov. Comm. Acad. Petrop. 12: 516. 1768. 
Botrychium palmatum Presl, Abh. B6hm. Ges. Wiss. V. 4: 303. 1845. 
Plant 5-32 em. high; rhizome slender, erect; bud smooth, entirely enclosed; leaf 
erect, the commonstalk mostly epigean, 2.7-25 cm. long, the lamina wholly bent down in 
vernation, sessile or nearly so, broadly deltoid, acute, 1-6 cm. long, 0.8-9 cm. broad, 1-2 
times pinnately or even subternately divided, the primary divisions linear-lanceolate to 
ovate or oblong, entire, incised or pinnatifid, with linear-lanceolate to ovate-lanceolate, 
entire or incised segments; sporophyl wholly bent down in vernation, 0.8-8 cm. long, with 
a stalk rarely equaling the lamina, the panicle rather diffuse. 
TYPE LOCALITY: Europe. 
DISTRIBUTION: Greenland and Nova Scotia to Pennsylvania, west to Colorado, Washington, 
and Alaska; also in Europe and Asia. 
ILLUSTRATIONS: S. G. Gmel. loc. cit. pl. 11, f.2; Fl. Dan. £1. 18 (right hand figure only); D. 
C. Eaton, Ferns N. Am. #/.5, 7.2; Britt. & Brown, I. Fl. f 6. 
9. Botrychium virginianum (1,.) Sw. Jour. Bot. 
Schrad. 1800’: 111. 1801. 
Osmunda virginiana L. Sp. Pl. 1064. 1753. 
Botrychium virginicum Willd. Sp. P1.5: 64, 1810. 
Botrychium gracile Pursh, Fl. Am. Sept. 656. 1814. 
Botrychium virginicum mexicanum Grev. & Hook. Bot. Misc. 3: 223. 1833. 
Botrychium brachystachys Kunze, Linnaea 18: 305. 1844. 
Botrychium anthemoides Presi, Abh. BOhm. Ges. Wiss. V.5: 323, 1847. 
Botrychium dichronum Underw. Bull. Torrey Club 30: 45. 1903. 
Plant rather slender, 8-80 cm. high; rhizome erect, rather stout; bud hairy, only 
partly enclosed; leaf erect, the commonstalk mostly epigean, 5-49 cm, high, the lamina 
ample, wholly bent down in vernation, thin and membranous when dry, sessile, broadly 
deltoid, acute or obtuse, 2.5-35 cm. long, 4-42 cm. broad, 3-5 times divided, the primary divi- 
sions lanceolate, oblong or elliptic to ovate or rhombic, the penultimate divisions narrowly 
oblong or lanceolate to ovate or even deltoid, pinnately divided, the segments oblong, 
blunt, incised; sporophyl usually long-stalked, often as much as half the height of the 
plant, the panicle usually slender and not compact. 
TYPE LOCALITY: Virginia. : 
DISTRIBUTION: Maine to British Columbia and southward throughout the United States to 
Mexico and the West Indies ; also in Europe and Asia. ; 
ILLUSTRATIONS: D. C. Eaton, Ferns N. Am. fl. 33; Britt. & Brown, Ill. Fi. f 7. 
10. Botrychium obliquum Muhl.; Willd. Sp. Pl. 5: 62. 1810. 
Botrychium cuneatum Desv. Mém. Soc. Linn. Paris 6: 195. 1827. 
Botrychium tenutfolium Underwood, Bull. Torrey Club 30: 52. 1903. 
Scepiridium obliguum Lyon, Bot. Gaz. 40: 458. 1905. 
Sceptridium tenuifolium Lyon, Bot. Gaz. 40: 458. 1905. 
Plant 8-50 cm. high, often fleshy, the rhizome horizontal or ascending, the main roots 
fleshy-fibrous, 2-3 mm. thick, with finer fibrous branches; bud hairy, entirely enclosed ; 
