ANALYTICAL ARTIFICLM, KKV. j.- 



P). Ovary supciiDr or nearly so : in-riantli regular or none. 

 Carpels united into a compound ovary : perianth corolla-like rarelv 

 partly herbaceous : seed albuminous. 

 Flowers not upon a spadix. 



Terrestrial ; stems from a bulb, corm or rhizome : anthers 2-celled. Lii.iacEjE, 108. 

 Woody climber, with tendrils : anthers 1-celled. Smii.ac.'E/E, lOlt. 



Submerged aquatic, with linear gra.ss-like leaves. roNTKDEKiACE^, 110. 



Flowers crowded ujion a spadix : fruit Heshy and coalescent, 2-celle(l. Auacp:^, 111. 

 (.*ai]>els distinct (or separable) or solitary : acjuatic or marsh lierbs. 

 Perianth none : seeds albuminous : fruit utricular or nut-like. 



Flowers monoecious in heads or on a crowded spadix : leaves linear. Typhace^, 112. 

 Small floating disk-like jdants. Lemnace^e, 113. 



Perianth herbaceous, petaloid, or none : albumen none. 



Carpels few : perianth none or in fertile flowers herbaceous and 



valvate. Xaiadace.u, 114. 



Carpels numerous in a whorl or head : 3 sepals herbaceous, 3 



petaloid. AusMACEiE, 115. 



Pei'ianth of 6 similar glnmaceous segments : capsule 3-valved. Rushes 



or sedge-like. JuNCACE*, 116. 



Perianth coriaceous in two dissimilar series : fruit a berry or drupe : 



palms. Palm J':, 117. 



Flowers in the axils of scales or glumes, spicate, without evident perianth. 



Stems solid ; sheaths closed ; scales single ; anthers basiflxed. Cyperace.*:, 118. 



Culms hollow, terete ; sheaths split ; glumes in pairs ; anthers versatile. GKAMiXEiE, 119. 



Series II. CEYPTOGAMOUS PLANTS. Flowers without stamens or pistils, aii.l 

 not producing seeds with an embryo. 



Class IIL ACROGENOUS PLANTS. Plants growing from the apex, and mostly 

 with distinct leaves. 



Subclass I. VASCULAR ACROGENS. Plants with both woody and vascular tissue. 

 A. Spores only of one kind. 



Cylindric jointed leafless plants with toothed sheaths : fructification 



in a ternunal spike. Equisetage^, 120. 



Fronds fern-like, erect in vernation : sporangia globose, coriaceous, 



in a spike or panicle. OPHlOGLO.ssACRffi, 121. 



Fronds cireinate in vernation : fructification on their under surface Filices, 122. 



B. Spores of two kinds. 



Fructification within the base of the leaves or in their axils. Sei.agixeli.e.^^, 123. 



Spores contained within peduncled cajjsules borne by the rhizomes. MAUsiLiACEiE, 124. 

 Floating fronds small, pinnately branched : spores at the base. Salviniace.e, 125. 



Subclass II. CELLULAR ACROGENS. Plants with cellular tissue only. 



Capsule usually opening by a lid, containing spores without spiral fibres. 



Branches not regidarly fascicled: areolation simple: spores of one kind. Musci, 126. 

 Branches regularly fascicled : areolation of colorless cells and green 



linear ducts : spores of 2 kinds. Sphagnacejs, 127. 



