APPENDIX I. 



315 



1. Shrubs. Petals valvate . Rhamnece. 



2. Stipules ochreate . . . Polygonece. 



3. Filaments elastic . . . Urticece. 

 /3. Leaves exstipulate. 



* Flowers hermaphrodite. 

 x Styles 2 or more, wholly free. 



1. Seed solitary . . . Scleranthem. 



2. Seeds many . . . Cololanthus. 

 x x Styles solitary or combined. 



} Carpels many, free . Ranunculacece. 

 XX Carpel one, or several combined. 

 o Stamens not on perianth. 



1. Seed 1. Cotyle- 

 dons straight . . Urticece. 



2. Seed 1. Cotyle- 

 dons folded . . Nyctaginece. 



3. Seed 1. Embryo 



curved .... Amaranthacem. 



4. Seeds several . . Ohenopodiacem. 

 oo Stamens on perianth. 



1. Pour, opposite its 

 segments . . . Protectees. 



2. Alternate with its 

 segments . . . Thymelece. 



3. In two rows . . Lauracece. 

 ** Flowers unisexual. 



1. Herbs 0henopodiace.ee. 



2. Trees. Leaves altera. Lauracece. 



3. Trees. Leaves oppo- 

 site Monimiacece. 



4. Leafless, twining . 



Endogens, or Monocotyledones. 



I. Flowers with distinct perianth of six pieces in 



two rows. 



A. Flowers irregular, gynandrous . . Orchidece. 



B. Flowers regular. 



t Perianth superior, petaloid or herbaceous. 



1. Anthers extrorse, or versatile . Iridece. 



2. Anthers introrse .... 



ft Perianth inferior, petaloid, or herbaceous. 

 * Fruit a few-seeded 1-3-celled berry. 



1. Testa pale, membranous . Smilacece. 



2. Testa black, brittle . . . Liliacece. 

 ** Fruit a 1-seeded drupe . . Palmece. 

 *** Fruit a many-seeded capsule Liliacece.. 

 **** Fruit of 3-6 one-seeded 



carpels Naiadacece. 



Iff Perianth inferior, glumaceous. 



1. Anthers 2-celled. Fruit cap- 



su l ar Juncece. 



2. Anthers 1-celled. Fruit an 



utricle Restiacece. 



II. Flowers naked, or with irregular or incomplete 

 perianth, not glumaceous. 



A. Flowers arranged on dense long spike or spadix. 



1. Climbing shrub Freycinetia. 



2. Erect water-plants. 



Flowers spiked Triglochin. 



Catkin cylindrical .... Typha. 

 Catkin spherical 



3. Floating or submerged water- 

 plants 



B. Flowers not on a spadix, perianth 0, 



or a small 1-valved spathe. 



1. Minute floating fronds. . . . Lem.na. 



2. Leafy water herbs. Peduncle 



long, twisted Ruppia. 



3. Leafy water herbs. Peduncle 



snort • Zannicliellia. 



4. Tufted herbs. Anther 1-celled . Restiacece. 



III. Perianth incomplete, glumaceous, of one or 

 more scales. 



1. Stems solid. Sheaths of leaves 



split Restiacece. 



2. Stems solid, 3-angled. Sheaths 



entire Cyperacecs. 



3. Stems hollow, terete. Sheath split 



II. KEY ADAPTED TO THE LINKZEAN METHOD. 



I. Monandria. Stamen 1, in tie same flower as 

 the pistil. 

 x - Tufted herb, with opposite leaves . Sclera 



2. Leafless, fleshy, jointed, seaside 



herb Salicornia. 



3. Minute, floating, scale-like fronds . Lemna. 



