372 



CLL'B-MOSS FAMILY. 



* * Fructification borne at the top or middle of an otherwise leafy frond. 



O. Claytoniana. Wet places, common : sterile fronds much like those 

 of die la>t, but more obtuse at the top : fertile one-; with 2-4 pair> of contra.' 

 and fen lie Mucki>L pinna- just helo\v the middle, otherwise like the sterile 



O. regalis, KOVAI. FERN. Also common in swamps and wet woods, 

 fraiting later than the others : fronds truly hipinnafe ; ]iinnules oval or oblong' 

 serrulate, obtuse, someiimes a little heart->hapcd at Iia>e. or sli^htlv :inne!ed on 

 one .-iilc; fertile portion at the top of the frond, pauieled ; sjiori-. a-es li"ht- 

 brown. 



29. BOTRYCHIUM, MOONWORT. (Name from the Greek word for 

 a bunch of yrnprs, from the appearance of the fruetitieation.) Speeies verv few 

 none cultivated. 



B. ternatum. Shaded Brassy pa>tuivs and hillsides : plant flesliv, 3' -10' 

 high; common stalk with two branches, a long-stalked fertile one with" twice or 

 thriee pinnate fructification facing a triangular ternately compound sterile por- 

 tion on a longer or shorter stalk. Has several forms :' var. r.CN.utioii.K.s has 

 roundish kidney-shaped sterile divisions; in var. OBLhjri'M thev are lanceolate 

 from an oblique base; and in var. DISSECTCM, pinnatilid into narrowly toothed 

 and razored lobes. 



B. Virginicurn. In rich woods : plant herbaceous, not fleshy, 6' - 1 8' hiirh ; 

 sterile portion sessile on the common stalk, thin, broadly triangular, ternate; 

 the parts twice or thrice pinnate ; divisions thin, oblong-lanceolate, incised or 

 toothed; fertile portion long-stalked, twice or thrice pinnate. Other smaller 

 species occur rarely N. 



30. OPHIOGLOSSUM. (Greek equivalent of the common name ) 



O. vulgatum, ADDER'B-TONGUE. Wet meadows or hillside pastures, 

 rare: 3'- 10' high; sterile portion somewhat flesliv, ovate or elliptical, entire, 

 l'-2' long, sessile near the middle of the stalk wh'ich supports the short two 

 sided spike. Some rare tropical species have large and palmate, or pendulous 

 and ribbon-like fronds. (Lessons, p. 15s, fig. 508.) 



134. LYCOPODIACE.2E, CLUB-MOSS FAMILY. 



Flowerless plants, often moss-like or fern-like, with leafy, often 

 elongated and branching stems, the spores contained in rather large 

 solitary spore-cases borne in the axils of the simple mostly awl- 

 shaped leaves. (Lessons, p. 1GO, fig. 511-515.) 



1. Growing on land: stems more or less elimr/attd ami branch! n g : leaves mostly 

 less than 1' Inn//, <>/'/, -n mi unit : s/>rt -<<..< in the cucils of the upper (often 

 transformed ami imbricated) scale-like leaves. 



1. LTCOPODIUM. Mostly evergreen plants ; the leaves awl-shaped, in 4 or 



inure nnvs; the '2-valved kidney-shaped spore-cases all of one kiud, contain 

 iiiLT "uly minute iiumherleo; spores. 



2. SELAGINELLA. Rut one species evergreen N. ; leaves mostly flattened, rare- 



ly awl-ehaped, mostly in 4 row*, two row* being of smaller leave-*; spore-cases 

 OT2 kiml-: one 2-valved and filled with minute spores, the other 3-4-valved 

 and containing very few lari:e s]>ores. 



2. Growing in wntt-r or mini: stuns r, >// nlmrt and corm-like : leaves rush-like, 

 dongated, with large spore-cases adhering to the tipper surface of tiidr dilated 

 bases, unil us if imbedded / than. 



3. ISOETES. (inter <pore-caM-s with large reticulated spores; inner ones with 



minute powdery spores. 



1. LYCOPODIUM, CLUB-MOSS. (Xame from the Greek, meaning 

 wolf's-foot, probably from the short hairy branches of /.. clunttnm.) Specie* 

 about 100, in all parts of the world : the following all wild species. 



