66 



CALYCANTHACEAE. 



CALYCANTHUS. Strawberry Shrub. 

 ( Family Calycanthaceae ) . 



Sparingly branched aromatic 

 shrubs: deciduous. Twigs moder- 

 ately slender, compressed at the 

 nodes: pith relatively large, 

 somewhat 6-sided, white, continu- 

 ous. Buds superposed in a single 

 bud-like aggregate, sessile, round 

 or oblong, brown-hairy, without 

 evident scales, the end-bud lack- 

 ing. Leaf-scars opposite, excep- 

 tionally twisted into 2 ranks or 

 the pairs separated, horseshoe- 

 shaped, raised: bundle-traces 3: 

 stipule-scars lacking. (Butneria). 

 Winter-characters of Calycan- 

 thus fertilis, C. floridus and C. oc- 

 cidentalis are contrasted b y 

 Schneider, f. 222. 



Calycanthus, with many bracts, 

 sepals, petals and stamens inter- 

 grading so as to confirm the im- 

 pression that all are modified leaves, and lacking the definite 

 arrangement in whorls that marks many flowers, in these 

 respects presents a primitive floral type. On the other hand, 

 as in a rose, the receptacle or end of the stem is produced 

 into a deep cup on which these parts originate. Such cases 

 furnish an argument against an opinion that the Dicotyle- 

 dones are primarily divisible into axifloral and <5alycifloral 

 groups. 



1. Buds rounded. 2. 



Buds conical-oblong. (1). C. occidentalis. 



2. Twigs more or less persistently villous. (2). C. floridus. 

 Twigs glabrescent or puberulous. C. fertilis. 



