loJ> FORMS OF LEAA'ES. 



519, and Arundo arenaria, t. 520. Tiie same char- 

 acter is found in many of the Orcliis tribe, as Satijri- 

 um albidiim, t^ 505. 



Eqidtantia^ f. 35, eqiiitant, disposed in two opposite 

 rovA s and clasping each other by their compressed 

 base, as in Narthec'ium ossifragum^ t. 5^5, and the 

 genus Iris ; also JFitsenia conjmbosa, Exot. Bot. t. 

 68, and Dilaths corijmbosa^ t. 16. 



Decurrentia^f. 36, decurrent, running down the stem or 

 branch in a leafy border or wing, as Onopordum Acan- 

 tliium, (55) Engl. Bot. t. 977, Carduus tennijiorus, t. 

 412, and many other Thistles, alsp the Great Mullein, 

 Verbasciiin Thapsus, t. 549, and Comfrey, Symphy- 

 tum officinale, f. 817. 



Florifera^ f. 37, flower-bearing, when flowers grow out 

 of the disk or margin of any leaf, as in Rusciis aculea- 

 tus, I. 560, Xylophylld latifolla^ and X.falcata^ Andr. 

 Repos. t. 331. This is equivalent to a frond in the 

 class Crypfogamia ; btc p. 117. 



3. With regard to form. Leaves are either siinpliciay 

 simple, like those of Grasses, Orchises, Lilies, and 

 many other plants, -as Ballota mg?'a, Engl. Bot. t. 46, 

 and Berber'is vulgaris, t. 49 ; or composita, com- 

 pound, as in most Umbelliferous plants. Parsley, 

 Hemlock, Sec. ; also Roses, Engl. Bot. t. 990—992. 



In compound leaves, the footstalk is either simple, as in 

 the instances last quoted, and Slum angustifoliian, t. 

 139 ; or compound, as those of Selinum palustre, t. 

 229, and Thalictnim ma jus, t. 611. — In simple 



(55) [Cotton Thistle] 



