534 101. MAESILEACE^:. 102. LYCOPODIACE^. 



Order CI. ATAKSILEACE^E. 



Creeping plants with alternate erect leaves, circinate in bud. 

 Fructification consisting of globular coriaceous axillary bodies 

 with 3 or 4 cells and containing sacs including either other 

 bodies that germinate or loose granules. 



1. PILULARIA. Capsules solitary, nearly sessile, globosp, 

 coriaceous, 2 4-ceiled. Cells containing bodies of two 

 kinds granules, and membranes containing minute grains. 



1. PILTJLA'KIA Linn. Pillwort. 



1. P. ylobulifera (L.) ; ped. erect, caps. 4-celled. E. E. 521. 

 H. F. 57. N. 393. Rhizome slender, creeping, producing leaves 

 and roots at regular intervals. L. very slender, erect. Caps, 

 pubescent, slightly stalked, axillary, nearly spherical, hairy. 

 Margins of ponds and lakes. P. VI. VII. E. S. I. 



Order CII. LYCOPODIACEJE. 



Leafy plants with simple imbricate leaves, or stemless with 

 erect subulate leaves. Fructification of axillary sessile capsules 

 with 2 or 3 valves and no ring, including minute powdery 

 matter or spores* 



* Capsules not opening. Leaves radical. 



1. ISOETES. Caps, in pouches formed of the swollen bases cf 

 the leaves. Spores of two kinds attached to filiform 

 receptacles ; those of the outer leaves large, of the inuer 

 very small. 



** Capsuks bursting. With leafy stems. 



2. LYCOPODIUM. Caps, of one kind, 1-celled, containing 

 many minute spores. 



8. SELAGINELLA. Caps, of two kinds, small containing many 

 minute spores, or larger and containing about 4 large spores. 



