993 994 



ions of sterile frond arranged nearly reclined upon it. New England; Colo; 



Serpendicularly. Ct; NY; Mich; Colo; BC. Alaska. 



: BOREALE Milde. Section OSMTOfDOPTEBJB. Bud pilose, 



Plant 2% -7' hi, smooth, fleshy; sterile enclosed in a smooth upright cavity at 

 seg placed above the middle, sessile, one side of the lower part of the stalk, 

 cordate, ovate or deltoid, pinnately tt: VZKGZKZAWM Swz. 

 parted, acute; lowest seg spreading from Rattlesnake fern. Plant from a few 

 a narrower base, ovate or cordate-ovate, inches to 2 hi; sterile seg sessile above 

 acute, all entire, or here and there the middle of the stalk, broadly triangu- 

 flabellately incised with acute lobes, or lar, thinly herbaceous, ternate; the short- 

 pinnately parted; secondary seg from a stalked primary divisions once to twice 

 narrowed base, ovate, acute, serrate, the pinnate, thence once or twice pinnatifid; 

 upper spreading, quickly decreasing, lobes oblong, cut-toothed toward apex; 

 finally elliptical, acute; fertile seg bi-tri- fertile seg long-stalked, bi-tri-pinnate. 

 pinnate, panicled. Apex of sterile seg Bud pilose, enclosed in a smooth up- 

 bent over inside of the nearly erect right cavity at one side of the lower 

 fertile one in vernation; division of the part of stalk; fertile seg recurved its 

 sterile seg arranged on an angle. Un- whole length, the longer sterile segs re- 

 alaska. clined upon it. New Brunswick to Fla; 

 B: NEOXtlSCTUM Wood. Arizona; Cal. Synonyms: B. gracile 



Plant 2-12' hi, usually fleshy; sterile Pursh (a reduced form). Botrypus Vir- 

 seg placed above the middle, short ginicus Michx. Osmunda Virginica L. 

 stalked or sessile, ovate or oblong, pin- 

 nately parted into ovate-oblong, obtuse, Other species of Botrychium credited 

 rounded, entire, incised, pinnatifid. or to North America north of Mexico, are 

 pinnately parted seg. the narrow divis- the following: 



ions linear; fertile seg 1-3-pinnate, pani- B: BITEBNATUM (Lam.) Underwood. 



cled, often very much branched; spores B: COULTEBI Underwood, 



thickly covered with large rounded B: DIrJSECTUM Spreng. 



warts. Apex of both segments turned B: MATBICAB.IAE (Schrank) Spreng. 



down in vernation; sterile seg clasping B: OBZiZQUTTX Muhl 



the fertile with its apex overlapping the Variety INTEBMEDIUM (D. C. Eaton) 



whole. New England; NY; Ohio; Mt Underwood. 



Peddo. Washington (Suksdorf). Syn- B: OCCIDENT ALE Underwood. 



onym: B. matricariaefolium A. Br. fide B: PUMICOLA Coville. 



recent authors. B: SIIiAXPOUUM Presl. 



**IL Buds pilose; sterile seg usually B: TENEBBO3UM A. A. Eaton. 



long-stalked; plant larger, fr'ng in CHEIBOGLOSSA Presl. 



autumn. Fertile spikes several, arising from 



B: TEBNATUM Swz. the base of sterile seg. Treated in the 



Frond fleshy, the common stalk very past by many botanists as a section of 

 short; sterile seg broadly pentagonal or Ophioglossum, and monotypic, based on 

 triangular, ternate; the 3 primary divis- the Linnaean Ophioglossum palmatum. 

 Ions also stalked, as broad as long, pin- C: PA&MATA (L) Presl. 

 nately decompound; ultimate divisions Rootstalk fleshy, tuberous, covered 

 varying from round-reniform to triangu- with fine wool-like chaff; plant fleshy, 

 lar-lanceolate, entire or variously toothed 6'-2 hi, the sterile seg cuneate at base, 

 and incised; fertile seg long-stalked, bi- 2-6-lobed or rarely entire, lobes elongate 

 quadri-pinnate. Apex of both seg bent and tapering; fertile spikes % or more, 

 down, with a slight curve inward in ver- borne on the sides of the stipe just be- 

 nation. New England; Canada; BC; Fla; low the sterile seg on its margin. Fla. 

 Wash; Cal. Synonyms: B: australe R. OPHIOGLASSUM L. 



Br. B: lunarioides Swz. B: fumarioides Fertile spike single, arising from the 

 Willd. B: decompositum Mart & Gale. base of sterile seg. 



Osmunda ternata Humboldt. Botrypus *Sterile portion near the middle of 

 lunarioides Mich. stalk. 



Variety OBLJQUUM Milde. O: VULOATUM L,. 



Form 6-17' hi, with more compound Rtstalk short, oblique; stalk 6-12' hi, 

 fructification and with divisions of ster- sterile seg ovate or elliptical-oblong, 

 ile seer oblong or lanceolate and obtuse 1^-4' long, somewhat fleshy, somewhat 

 or oblique at base. narrowed at base, sessile; fertile spike 



Variety DISSECTUM Milde. 1' or more long. Me to Ky; Tenn; Tex; 



Form with divisions of sterile seg la- Arizona; Alaska. Synonym: O. Engel- 

 ciniately cut into narrow teeth. manni Prantl (fide Underwood). Adder- 



*** Vernation wholly inclined, in the fer- Tongue. 



tile seg recurved. * 'Sterile portion near base of stalks. 



B: LANCE OZ.ATT7M Angst. O: CBOTALOPHOBOIDES Walt. 



Plant 3-9' hi. somewhat fleshy; sterile Rtstalk tuberous, 3-5" thick; stalk 3-6' 

 seg closely sessile at top of a long com- hi, sterile seg %-!' long, ovate, slightly 

 mon stalk, in the smallest forms 3-lobed, petioled, veins somewhat indistinct; fer- 

 in larger ones broadly triangular, twice tile spike short and thick, 3-6" long. Fla 

 pinnatified, the divisions lanceolate, en- to La. Synonyms: O. bulbosum Michx. 

 tire or toothed, all set at an oblique O. vulgatum Crotalophoroides D. C. 

 angle; fertile seg short-stalked, slightly Eaton (all fide Underwood), 

 overtopping the sterile, bi-tri-pinnate. O: NUDXCAUUE Linnaeus f. 

 Bud smooth; fertile seg recurved its Rtstalk slightly tuberous; stalk 1-4' hi, 

 whole length, the shorter sterile seg sterile seg Ms-1%' long, ovate or oblong, 



