100. MAKSILBACE^. 101.. LTCOPODIACE^. 443 



longer than tlie frondj sometimes very long. — ^. anibiguum 

 (0. and G.) ;, rhizome often producing two fronds from the 

 same joining, frond oblong-lanceolate narrowed below. 2 — 4 in. 

 high. — Pastures. j8. Orkney. -Wa %»«e. Scilly. Mr.Towm' 

 end.— P. V, VI. , E. S. I. 



[O. licsitan'ictim (L.); frond- lihear-lanceojate. — N. ed. 3. 331. 

 S. 47. — Height 1 — 2 mohes, erect. — Petit Bo Bay, Guernsey. 

 Mr. Q. Wohey. P. I.] 



Order C. MAESILEAqE^. ' 



Creeping plants with, alternate erect leaves, circinate in bud. 



Fructification consisting; of globular nearly sessile coriaceous 



bodies with 3 or 4 c&Us^ and containing sacs, including eitlier 



other bodies that germinate or loose granules. 



•1. PiLULAKiA. Involucres solitary, nearly sessile, globose, 



coriaceous, 4-Gelled. Cells containing l^odiesyftw,o.JfiQds — 



granules, and membranes containing minute grains. 



1. Piltoa'ei A Xinra. PUI^ort. 



■ ,1. P. globuKf'era.(L.).—i:,£, 521. iV:.393.-T-B,hizpme slender, 

 creeping, producing leaves and roots at regular intervals. L. very 

 .slender, ei^ect.; ,Inv.;8lightly stalked, axillary, nearly spherical, 

 hairy. — ^Margins of ponqs and lakes. P., VI. VII. ■ E. S. I. 



Order CI. LTCOPODIACEJE. 



Leafy plants with simple imbricate leaves ; or steml^s? with 

 erect subulate leaves. Fructification of axillary sessile capsules 

 ^fnth. 2 or 3 valves and no ring, includiiig minute powdery matter 

 or sporules. 



* Capsules not opening. — Leaves radical. 



1. IsoETES. Caps, in pouches formed of the Swollen bases of 

 the leaves. Sporuleg of two kinds attached to' filiforin 

 receptacles'; those of the outer leaves large, of the inner 

 very small. 



** Capsules bursting. — With leafy stems. 



2. LycopoDiTJM. Caps, l-celled, 2Tvalved, containing pow- 

 der ; or 3-valved, containing. 1^4 granules. , , 



1. IsoBiES Linn. QuiUwo^t. 



* No persistent leaf-bases.; Caps, not .wholly covered by the 

 membranous edge of the pouch. ■ B'aefc of swollen leaf-base 

 smooth. — Ac[uatic. . , ■.:•■. 



