THE ANDRCECIUM. 



59 



independent of each other (Meconopsis, fig. 308) ; monadelphous (st. monadelpha), 

 when the filaments are more or less united in a single tube (Oxalis, fig. 309 ; Mallow, 



311. Cj'tisus. Andrrecinm and pistil. 



30!). Oxalis. 310. Mallow. 



Audroecium and pistil. Andrcecium (mag.). 



312. Lotus. Andrcecium and pistil. 



313. St. John's Wort. 

 Flower cut vertically. 



fig. 310; Cytisus, fig. 311); diadelphous (st. diadelpha), when united into two 

 columns (Lotus, fig. 312) ; triadelphus (st. triadelpha), when in three bundles 

 (St. John's Wort, fig. 313) ; polyadelphus (st. polyadelpha), 

 when in several simple or branched bundles (Orange, fig. 

 314 ; Castor-oil, fig. 315) ; syngenesious (st. syngenesa), when 

 the anthers cohere (Thistle, fig. 316). Sometimes the co- 

 hesion extends to the filaments also (Lobelia, Melon, fig. 

 317). The stamens are said to be gynandrous (st. gynandra), 



315. Castor-oil. 

 <? flower. 



317. Melon. 

 Androecium (mag.). 



318. Aristolochia. 



Andrcecium 

 and pistil (mag.). 



when they are united throughout their length to the pistil (Orchis, fig. 188 ; Ari- 

 stolochia, fig. 318) ; in this case they are necessarily epigynous. 



The filament may be 

 cylindric or filiform (Rose), or 

 capillary (Wheat, fig. 335), or 

 subulate or awl-shaped (Tulip, 

 fig. 345), or flat and dilated 

 at its base (Campanula, fig. 

 319). It is said to be bi- tri- 

 cuspidate, when forked at 

 the top, or three-toothed, 



With the mid-tooth antheH- 

 feTOUS (Garlic-Onion, fig. 



320; Crambe, fig. 321) ; appendiculate, when it bears an appendage; such 



3]f) . Campanula. 

 PiStil and ttamen " 



320. Onion. 

 Stamen (mag.). 



321. Crambe. 

 Androecium and pistil. 



-122. Borage. 



