""1 CLUB-MOSS FAMILY. 



* Stems trailing, sending out rmtlets nearly up to the end. 

 *- Branchlets only 1" broad: leaves wide apart in each row. 



S. delicatissima. Stems 4' -8' long, irre-nlarly forked and branched; 

 branches rather di-tant ; leave.- oblong-roundish, obtuse, with a few slender 



cilia toward- liu: base ; intermediate ones ovate, pointed. 



- *- Branchlets 2'' -3" broml, tlir /tar,* closely placed in each row. 



S. Kraussiana. (LYCOPODIUM DENTKTI.YTI M of the florists.) Stems 

 very long, articulated below each branch; hranches distant, hearing a few short 

 forked branchlcts ; leave- hri-lit green, the larger ones oblong-ovate, acute, 

 roiindi-d on the upper -ide, nearly straight on the lower, mimitelv denticulate ; 

 smaller ones with longer often rellexed points. 



S. uncinata. (l.vc. < vksn M <>f ilorists.) Stems very long, not articu- 

 lated, freely branched ; branches 2 - 3-pinnate with short crowded hranc!. 

 le;ues wlien living with a steel-blue ir.de-ecnee, failing to green when dried, very 

 closely placed, larger one, oblong, equal-sided, obtuse, entire ; smaller one's 

 ovate with slender incurved points. 



* * Stems ascending, only the lower part bean'//'/ l<m>f rootlets. 

 S. Martensii. (Lvc. sxoLoxfFERUM of florists.) Stems e'-io' long, 



much branched from the ba.se ; branches hipinnate, with copious branchlets 

 2'' -3" or even 4" wide ; larger leaves crowded, obliquely ovate, the upper side 

 broadest, obtuse, entire ; smaller ones ovate with a slender often recurved point. 



* * * Stems erect, or nearly so, rooting only at the very base. 



S. er^thropus. Stalk 2' -6' high, bright red, having a few closely ap- 

 pressed red leaves, and bearing at the top i broad frond-like stem pinnate] \ or 

 pedately divided into a few 2-3 times pinnate branches, with verv numerous 

 extremely crowded branchlets 1" - 1 ,' f " wide ; leave- elo-cl\ imbricated, oblique! v 

 ovate-oblong, curved upward, rather obtuse, ciliatc ; smaller ones ovate, with 

 long straight points. 



S. Braiinii. (LYC. WiLLDEN6vii of florists.) Stalk straw-color or pale 

 red, shorter than in the last, finely pubescent, as are the branches ; frond-like 

 Stems long-ovate, 4 times pinnate, resembling an elegant fern; branchlets not 

 crowded, about 1" wide; leaves scarcely imbricated, ovate, obtuse, entire; 

 smaller ones with straight points. 



* # * * Stems in a di-nse nest-like tuft, not rooting : branches often curling up 



when dry. 



S. CUSpidata. (Lvr. CIKCIN\LK of florists.) Frond-like stems 6'- 8' 

 lonir, uTeen abo\c, paler beneath, oblong or lyre-shaped, loosely 3-pinnate ; 

 branchlets 1" wide ; leaves obliquely triangular-ovate, wiih long often incurved 

 bristle-points, having a narrow whitish margin, sparingly ciliated and minutely 

 dentienl.ite ; smaller ones obliquely ovate, with long slender points. 



S. lepidophylla, from Lower California, c., is the " Bird's-Nest Moss," 

 or Resurrection-Plant." It is a nest-like ball when dry, but when moist it un- 

 folds and displays the densely 2 - 3-pinnate el"gam fern-like branches radiating 

 from a coiled-up central stem ; the leaves white-margined, closely imbricated, 

 i-'Hind-ovatc, obtuse. Nearlv 30 species are cultivated in Great Britain, besides 

 ihose here described. 



3. ISOETES, QUILMVOKT. (Xamc from the Greek words for equal and 



//"", meaning that ihe plant is the s:ime at all sca-ons.) The species demand 



too nice discrimination lor the beginner, and must be studied by aid of the 



Manual. (Lessons, p. 1 GO, fig. 516-519.) 



I. laciistris, rather rare only N., and the far commoner 



I. 6Chin6spOra, are the principal northern species, living underwater. 



I. riparia and I. Engelmanni, with leaves 4' -20' long, live partly 



out of water, at least for a p-irt of the summer. 



I. melan6poda, only W., lives in shallow ponds or pools which dry up in 



summer. 



