158 



have come to my notice and are presented in the thought that 

 they may have a statistical value. 



The anomaly is very frequent in the inflorescence o^ Aiiibrosici 

 trifida and A. hidcutata, usually leading to a terminal division of 

 the inflorescence. 



In two specimens of Coitaiirca Moscliata, pronounced fascia- 

 tion of the stem was noticed, beginning near the base and ex- 

 tending to the tip. In one case the stem reached the breadth 

 of about five-eighths inch. At the top was produced an in- 

 florescence which was necessarily much convoluted, forming 

 more than one complete turn and having a length of nearly 

 five inches (taking the measurement at the contracted portion of 

 the involucre, the narrowest portion of the head, and not from 

 the tips of the expanded florets) as compared with a width of 

 about a quarter of an inch, the thickness of the head being 

 slightly over one-half inch. The second case was very similar 

 in nature, but the phenomenon was not so marked. Penzig 

 gives for C. nigrcsccns : " Eine Art Fasciation der Stangelspitze, 

 mit drei verschmolzenen Inflorescenzen ist * '^ * erwahnt." De 

 Candolle in his Organographie Vegetale, figures a fasciated stalk 

 of C. Scabiosa bearing dt the tip two distinct and apparently nor- 

 mal inflorescences. The present inflorescences were apparently 

 normal except for theii" greater diameter in one direction. 



Slight fasciation of the stem was noticed in Coreopsis tinctoria 

 atropurpwca. 



In the herbarium of the Missouri Botanical Garden is a fine 

 fasciated specimen of Dioscorca divaricata collected on the 

 grounds in 1898 by Air. J. B. S. Norton. Brongniart * records 

 the fasciation of the whole climbing stem of this species. Penzig 

 gives other examples of torsion and fasciation. 



A head of HcUanthus sp. sent from Morahome, Ma., by T. 

 Tilden, Jr., shows a broad fasciation of the head and of the stem 

 for some distance. P'asciation in I IcHautluis has several times 

 been noted in the literature. 



Several more or less extensively fasciated stalks of Hihisciis 

 Moscluutos were noticed in a group of pkuits cultivated in the 

 Missouri liotanical Garden and in Tower Grove I'ark. 



* Hull. Soc. Hot. France 12: 49. i.S<'>5. 



