ANALYTICAL ARTIFICIAL KEV. 



XI 



li. Oviiiy superior or nearly so : i>criantl> regulnr or none. 



(.'iivpels utiiti'd into a conipouiul ovary ; perianth corolla-liko rarely 

 partly herbaceous : seed albuminous. 

 Flowers not upon n spadix. 



Terrestrial ; stems lron» a bulb, corm or rhizome : anthers 2-celled. LiliacR;?-:, 108. 



.Smii,acka:, lO'J. 



I'ONTKDEUIACEiE, 

 AUACEAC, 111. 



Woody climl)er, with tendrils : anthers 1-eelled. 

 Submerged acpuitic, with lineiir grass-like leaves. 

 Flowers crowded upon a spadix : fruit fleshy and coalescent, 2-cellcd. 

 Carpels distinct (or separable) or solitary : a(iuatic or marsh lierbs. 

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



Flowers monoecious in heads or on a crowded spadix : leaves linear. TvriiA<;F..f;, 112. 

 Small floating disk-like jdants. * LKMNACEit:, 113. 



Perianth herbaceous, jictaloid, or none : albumen none. 



Carpels few : perianth none oi' in fertile flowers herbaceous and 



valvate. Naiauace-E, 114. 



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



petaloid. Amsmace^e, 115. 



Perianth of C similar glumacoous segments : cajisulc 3-valved. Rushes 



or sedge-like. JuN'CACEiE, IIG. 



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



palms. Palma:, ll7. 



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



Stems solid ; sheaths closed ; scales single ; anthers basilixed. CYPEKACEiE, 118. 



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



Series II. 



CRYPTOGAMOUS PLANTS. Flowei-s without stamens or pistils, and 

 not producing seeds with an embr^'o. 



Class III. 



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 jointeil leafless plants with toothed sheaths : fructification 



in a terminal .spike. Equisetace^, 120. 



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



in a spike or panicle. Oniior.LOSsACE.t:, 121. 



Fronds circinate in vernation : fructification on their under surface FiLiCEs, 122. 



13. Sjiores of two kinds. 



Fructification within the base of the leaves or in their axils. SEi.ARiNEU.K.f:, 123. 



Spores contained within pednncled ca])s;nles borne by the rhizomes. Maksii,iace.1!, 124. 

 Floating fronds small, pinnately branched : Spores at the base. SALViNlACEiE, 125. 



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



Cajisule usually opening by a lid, containing spores without spiral fd)res. 



lirauches not regularly fascicled: areolation simple: spores of one kind. Mu.sci, 126. 

 Branches regularly fascicled : areolation of colorless cells and green 



linear ducts : spores of 2 kinds. Si'Haonace.k, 127. 



