GENERAL MORPHOLOGY. 



133 



F. Where the projecting and the penetrating angle and the lobes 

 are very irregular, and small and close, the margins are said to be 

 bitten out (erosus) (u). 



72. The simple fundamental forms may combine again by 

 uniting together according to the three dimensions of space, whence 

 an endless variety of compound structures is produced, for a very 

 few of which only we have designations which give clear impressions, 

 as, for instance, spherical forms connected in a linear series are 

 termed (moniliformes) necklace-shaped or beaded. A spherical or 

 flat part, the base of which is connected by a linear part (stipes) 

 with another, is said to be stalked (pars stipitata) (fig. 117. , 1.); 

 if it be immediately connected with some other part, it is sessile 

 (sessilis) (a, 2.). 



The most important relations have been comprised under the 

 following method of consideration : A simple form is regarded as 

 the main part, the supporter of the others, the axis on which they 

 are attached as limbs or accessories of the whole (articuli, paries ap- 

 pendiculares vel laterales). In the first place, a distinction is made 

 according to the form of the axis, whether it be elongated or not ; 

 and next, according to the form of the lateral parts, whether they 

 are stalked; further, according to the arrangement of the lateral parts 

 on the axis ; and, finally, according to their different relative size. 

 We thus obtain the following distinctions : 



A. The axis spherical or short. 



A. When all the lateral parts lie on one plane (b, c), they are hand- 

 or finger-shaped (partes palmatce, digitatce). 



B. When they surround the axis on all sides : 



1. Sessile lateral parts are in heads (p. capitatce) (/>>) ; * 



2. Stalked lateral parts are in umbels (. umbellatce) (c). 



B. The axis elongated. 



A. Lateral parts of equal length, from below upward. 



* Or at the end of an elongated axis, also tufted (p. comosce). 

 K 3 



