ANALYSIS OP AN KNDOGEN. 179 



" ^ Flowers (not on a spadix) in a dense, involaerate head." 



" 1 Flowers (not on a spadix) solitaiy, racemed, spioate, &o." The latter is true 

 here. Eefer to (3). 



" 3 Perianth tube adherent to the ovary, wholly or partly." 



" 3 Perianth free from the ovary." It ia adherent. Refer to (*5). The next 

 pupil reads : — 



" * 5 Flowers dioecious or polygamous. Low aquatic herbs." 



"* 5 Flowers dicecious, 6-androus. Shrubby climbers." 



" * Flowers perfect." The last is true of our specimens. Eefer to the dash ( ), 



and read, " — Gynandrous." 

 " — Monandrous." 

 " — 3-6-androus." It is 6-androus. Refer the next pupil to (6). 



" 6 Perianth woolly or mealy out-side." 



"6 Perianth glabrous out-side." The latter applies to our specimens. Refer to 

 the dash ( — ). " — Stamens 3, anthers introrse." 

 " — Stamens 3, anthers extrorse." 



" — Stamens 6." The last is true of our plant. It must, therefore, 

 belong to the Nat. Ord. Amabyllidace^. Turn to that order, and 



932. Deteemine the Genus, and SPEOiEa Further illustrations are unneces- 

 sary. 



