414: ORDER 157. LYCOPODIACEJ5. 



2 L. lucidnlum MX. Shining C. Ascending forking, 816' ; Ivs. h, 8 rows, Itncnr- 



lanceolate, denticulate, shining, spreading or reflexed, pointed, large for the genns 

 (3 4"), the fruitful ones like the rest, as in No. 1. Dump wood*. 



3 I>. inundattim L. Marsh C. Stem creeping, often submersed, the simple soli- 



tary ped. 13' (Conn., Mr. Bowles) or 47' (Mass., Dr. Ricard) ; leaves soft and fine, 

 curving upward ; spike solitary, 1 1 J' long, leafy. Swamps, Can. to Car. 



4 1L. alopecuroides L. Sterile branches decumbent, shorter than the tall (720') 



erect fertile ones ; leaves cro\vded, subulate, awncd ; spikes leafy, 23' long. 

 Swamps in pine-barrens, N. J. to Fla. arid La. 



5 Li. aciiiotiunm L. Creeping, branches twice forked, ascending fi 8'; leaves in 



5 rows, lance-linear, spreading, denticulate ; spikes solitary. Woods, N. 

 G L.. dendroideum MX. Tree U. Ground Pine. Erect, about 8', with its erect 

 branches spirally arranged, forked and crowded; Ivs. lance-linear, in 6 equal rows; 

 spikes several but solitary, 1|'. yellow-brown. Woods. Very elegant. 

 /3. obscurum. Branches spreading ; spikes 1 or 2, greenish brown. 



7 I*. Carolittianum L. Stem and branches creeping and rooting ; lv?. appearing 2- 



rankcd, the lateral spreading while the others are apprcssed. lanceolate ; peduncles 

 simple, 24'. bearing each a single spike. Barrens, N. J., and S. 



8 Li. sabinaelolliim Willd. Ground Fir. Long, creeping: branches erect, short, 



with fastigiatc branchlets ; Ivs. terete-?ubulate ; ped. short. White Mts.. and N. 



f> L.. complaiiatum L. festoon Ground Pine. Long, trailing; branches repeat- 

 edly forking, fan-shaped, spreading; leaves 4-ranked, the marginal connate, diverg- 

 ing, the others distinct, appressed ; peduncles long, with 4 6 spikes. Woods. 



1O 1<. clavatum L. Common C. Extensively creeping, branches ascending ; leave* 

 scattered, incurved, bristly-acuminate ; peduncles erect, remotely bracted, 35', bear- 

 ing a pair of straight spikes 2' long. In shades : common. 



2. SELAGINELLA, Spr. DWARF CLUB Moss. Fruits of two kinds, 

 viz., antlicridi<t^\\\\c\\ are 1-celled, opening at apex; and oophoridia, larger, 

 containing 1 4 (rarely 6) globous-angular grains. A large genus. The 

 species are cultivated in every greenhouse. Spikes quadrangular, bracts 

 in 4 rows. (Lycopoclium L.) 



Leaves all alike and similarly imbricated all around. Native No*. 1,2 



| Leaves of 2 kinds, in 4 rows, those of the 2 lateral rows larger and spread 



ing, of the 2 intermediate rows superficial, small, appressed.. .(a) 

 a Slender rootlets produced along the stems. x Leaves unequal-sided. .No?. 35 



x Leaves equal-sided NOB. 6 8 



No rootlets, &c. y Stems erect, frond-like, simple, stalk-like below. .Nos. 911 

 y Stems diffuse, branched from the base Xos. 12, 1-'] 



1 S. rupestre (L). Sts. ascending, 2 4', divided into numerous tufted, mossy branches ; 



leaves crowded, fine, blue-green, ciliate ; spike indistinct, (V. Rocks. 



2 S. Kclaginoides (L). Stem filiform, creeping, branches suberect. 3 G', the fertile 



simple. 1-spiked ; leaves lanceolate, yellow-green, ciliate. Wuuds, N. 

 8 S. apus Spr. Stem weak, loosely branched, with hair-1'.ke rootlets near tire base ; 

 leaves ovate, slightly oblique, acutish, the smaller ones pointed. Damp, t 



4 S. STOLONIFERA. Sts. producing long thread form rootlets below, 3-4-pinnately branch- 



ed : branchlets 2 4" broad : Ivs. imbricated, ovate, entire, obtu?e,the smaller one* with 

 a filiform straight point. The older stems become zigzag. G-10'. Com. (S. Mertensii.) 



5 S. DENTICULATA (or Kraussianu). I'rostrate. delicate, remotely and somewhat 3-pin- 



nately branched ; leaves 1", oblong-ovate, minutely denticulate, ac-ute, distant on the 



stem, crowded on the branchlets ; smaller leaves with rerlexed points. Very common. 



ft. VAR(KATA. Ends of the branchlets with their leaves white. Rootlets hair-like. 



6 S. t NCI>;AIA (orcxfia). Long-creeping, with hair-like rootJeto. 2 3 pinnatcly branched. 



