426 
Marsillaceae. Isoetese. Selaginellaceae. Lycopodiacese. 
123. Marsiliacese. 
674. Pilularia. Pill-wort. XXIV, 8 . 
1. Stem creeping. Ls subulate (reed-like), 5—10 cm long. 
—Inundated places; Bonfol in Porrentruy. 6 
globulifera L. 2572. 
675. Marsilia. SVlarsilia. XXIY, 2. 
1. Stem creeping. Ls long-petioled, div. into 4 obovate- 
cuneiform, entire leaflets.—Standing water; Villeneuve, 
Bonfol. 6. quadrifolia L. 2578- 
124. Isoeteae. 
676. Isoetes. Quillwort. XXIV, 3. 
1. Lsdark green, stiff, 10—15 cm. Macrosporangi.e with a band 
of not very prominent callosities.—Under water, in 
lakes and ponds; Schwarzwald, Yosges, Lago Maggiore 
and probably also in Tess. 7 . * lacustris L. 2574. 
— Ls light green, wavy, 5— 10 cm, more finely acuminate 
than in the last. Macrosporangiae thickly covered with thin 
spine-like prolongations.—As the last and often in com¬ 
pany with it; between Locarno and Magadino. 7 
echinospora Durieu. 2575. 
125. Selaginellaceae. 
677. Selaginella. Selaginella. XXIV, 6. 
1. Ls ciliate-denticulate.—Alp., subalp. and Jura. 7, 8 
spinulosa A. Br. 2576. 
— Ls entire.—Alp. and subalp., also in the valleys, but in 
general less common than the last. 7 heivetica Spring. 2577. 
126. Lycopodiaceae. 
678. Lycopodium. Club-moss. XXIV, 6. 
1. Sporangia in the axils of ordinary ls. Ls erect or (v. re- 
curvum) spreading horizontally or curved back.—Alp., 
subalp. and Jura. 7 Selago L. 2578. 
— Sporangia united in terminal spikes, in the axils of 
bracts of a different form to that of the Is . £ 
2. Ls toothed, spreading horizontally or deflexed.— 
Woods of the mount.; scattered (wanting in S.). 6 
annotinum L. 2579. 
