642 LYCOPODIACEAE. (Lycopodium. 
Only microsporangia p 
Capsules Sarees ai ane 3 radiating lines; leaves developed, 
erally all alike 
gen 1. Lycopodium. 
Capsules Sian, 3- valy ed; spores marked with 1 line only; 
leaves ise scalie-like . 2. Psilotum. 
Microsporangia and macrospor angia present; spores with 3 3 radiating 
lines; leaves generally of two kinds 3. Selaginella. 
1. LYCOPODIUM, L. 
Spore-cases of one kind only — microsporangia —, sessile on the base 
of stem-leaves or of bracts in a terminal spike, 1-celled, kidney-shaped 
opening transversely with 2 valves. Spores minute, sulphur-colored, 
marked with 3 converging lines. — Perennial plants, with a terete stem, 
the leaves mostly even-sided, rigid, imbricate or crowded in 4—16 ranks. 
— The spores develop a monoecious prothallium, which is either tuberous 
and colorless, or chlorophyllaceous and provided with foliaceous appendices 
on its summit. 
large genus, widely spread over every A aes of the globe 
sue ate of one kind, homomorpho 
selenage he the gg oped stems erect : 
eeprom cena embrano 
Leaves broadly sie ey Sete o erate, green 1. L. serratwm. 
Leaves linear-lanceolate, entire, often dish 2. L. erubescens. 
_ Leaves nonsegirae ee eigen Sec sence 3. L. Haleakalae. 
Fertile serbia gradually smalle h divided, 
4. L. polytrichoides. 
Fertile aaaeee “pract - like in “terminal spikes: 
Spikes sessile: 
Leaves acerose aw. wink =: eurved : ‘ 8. L. cernuum. 
Leaves flat, 
Spikes tier “ the “base, simple or once or 
twice . L. nutans. 
Spikes eslindrieal, repeatedly forking: 
Ultimate lea’ i 6. L. ste achyon 
Ultima ve leav 7. L.p rr var. Mannit. 
pikes pedunculate i . n distant rene pranchle 9. LD. ange 
ves of sterile branches dimorphous as in uupnees : 
plant climbing. ; 3 x é ¢ : 10. L. volubile. 
1. L. serratum, Thunb. Fl. Japon. p. 341, tab. 38. — Stems erect, or 
decumbent at the base, 4—6‘ high, 3—4 times forking, foliose throughout, 
fructiferous in the one or two last divisions. Leaves rather thin, all 
alike, in 6—4 ranks, horizontally patent or reflexed, spathulate, 3—6 aes 
1/2—11/2, yery acute, irregularly eroso-serrate, contracted at the base, 
even petiolate, with the midrib often impressed underneath. Sporangia 
broad reniform, not apiculate. Spores pale whitish. — Luerssen, 1” 
nivel 1875, p. 440. — L. sulcinervium, Liahiy! Monogr. Lycop. I, 39. — 
Brack. Fil. U. 8. E. E. p. 322. — L. v fe no. 653 
Rian. n Oahu (west ridge of N ming c, , and probably all in 
The different seasons’ grow are often ue. oe new Piensa by shorter leav 
eo leaves are occasionally interrupted by sterile ones. — 
