

458 CLASSES. 



ORDER 2. DIGYNIA. Two Styles. 

 Ex. Agrimonia, (Agrimony.} 



ORDER 2. TRIGYNIA. Three Styles. 

 Ex. Euphorbia, (Spurge.) 

 CLASS XII. ICOSANDRIA. Twenty or more stamens 



inserted on the calyx. ORDERS 3. 

 ORDER 1. MONOGYNIA. One Style. 

 Ex. Prunus, ( Wild Cherry,) 

 Cactus, (Prickly Pear.) 



ORDER 2. DIGYNIA. Two Styles. 

 Ex. Crataegus, (Thorn bush.) 



ORDER 3. TRIGYNIA. Three Styles 

 Ex. Sorbus, (Mountain Ash.) 



ORDER 5. PENTAGYNIA. Five Styles. 

 Ex. Pyrus, (Apple, Pear,) 

 Spiraea, (Meadow Sweet.) 



ORDER 6. POLYGYNIA. Many Styles. 

 Ex. Rosa, (Rose,) 



Rubus, (Blackberry, Raspberry,) 

 Geum, (Avens.) 

 CLASS XIII. POLYANDRIA. Many Stamens 



ORDERS 7. 



ORDER 1. MONOGYNIA. One Style. 

 Ex. Sarracenia, (Side-saddle Flower,) 

 Sanguinaria, (Bloodroot,) 

 Tilia, (Basswood,) 

 Nymphaea, (Water Lily.) 



ORDER 5. PENTAGYNIA. Five Styles 

 Ex. Aquilegia, (Columbine.) 



ORDER 6. POLYGYNIA. Many Stiles. 

 Ex. Clematis, ( Virgin's Bower,) 

 Coptis, (Gold Thread,) 

 Ranunculus, (Crowfoot.) 



CLASS XIV. DIDYNAMIA. Four Stamens, two of 



which are longer than the others. ORDERS 2. 



ORDER 1. GYMNOSPERMIA. Seeds naked. 



A. Calyxes mostly jive-cleft. 

 Ex. Mentha, (Mint,) 



Verbena, (Vervain,) 

 Leonurus, (Motherwort.) 



B. Calyxes two-lipped. 

 Ex. Scutellaria, (Scullcap,) 



Prunella, (Self-heal.) 



