THE FLOWER. 



107 



Fig. 148. — Houseleek {Sampervivmn teclorum). 



gantly exemplified in the Stone-crop Order (Fig. 82, h), in 

 which are the Red and White Sedums (8. pulohellvm, ter- 

 natum) of the Southern States. Here the flower has all the 

 requisite characteristics : 



It is Perfect, with both sta^ 



mens and pistils ; Complete, 



with pistils, stamens, corolla, 



calyx ; Regular, with the parts 



in each whorl similar to one 



another ; Symmetrical, with 



the same number of parts in 



each whorl. Its like parts 



are Distinct, — that is, sepa- 

 rate from one another ; they 



are Free, the parts of each 



whorl separate from the 



whorl next to it; Alternate, 



the parts of each whorl alter- 

 nating with the parts of the 



whorl next to it. 



This Order presents the 



typical flower in the three 



ruling numbers. In the 



Houseleek (Fig. 148) the parts are usually 12 (a multiple of 3), some- 

 times 20 (a multiple of 5) ; 

 in the Sedums the central 

 flower of the cyme is qui- 

 nai-y, the rest of the inflo- 

 rescence is quaternary (4, a 

 multiple of 2). 



235. Radical Numbers. 

 Taking the Greek numerals 

 Monos (1), Dis (2, twice), 

 Treis (3), Tettares (4), Pente 

 (5), Hex (6), Hepta (7), 

 Okto (8), Ennea (9), Veka 

 (10), and adding to each an- 

 other Greek word, meros 

 (part), we have the follow- 

 ing vocabulary of floral 

 parts : Monomerous (1-me- 

 rous) ; Hippuris ; DimermiS 

 (2-merous) ; Circaea ; Tri- 

 merous (3-merous) ; typical 

 number of Endogens ; Tet- 

 F,G. 149.-GuttaPeroha('r,o«a«rf™ 6uUa): 1, fl.; rarnerous (4-merous), amul- 



2, pistil; 4, trans, sec. of ovary; 5, vert, sec; 6, tiple 01 2; Heath, J< uchsia ; 



trans, sec. of fr. ; 7, unripe fr. ; 8, anther. Pentamerous (5-merous) ; 



typical number of Exogens ; 



Hexamerous (6-merous), a multiple of 3 ; Outta Percha (Fig. 149) ; 



