Mr. Turner'/ Calendarium Plant arum marinarum. 1 27 



the habit of occafionally vifiting the fea, and collecling its produc- 

 tions, are led to expe£l that whatever they find they will find in perr 

 fcdion; which has not un frequently been the caufc of error as well 

 to thcmfelves as to others. For, to mention one inftance among 

 many, the Fucin ftibfufciis, which is one of the moft common fpecics 

 upon the Norfolk Ihorc, nnd fruclifies only in the earlicft months 

 of fpring, is generally gathered in September, and often throughout 

 the whole winter, with its ftem a,nd branches fwoUen in various 

 parts ; which fwelhngs many very learned botanifts have miilakea 

 for fruit, and conceived themfelves dilco\erers of either, what they 

 called, diamcrphous fruiStification, or new fpecies ; although, from 

 having again and again, in company with my worthy friend Mr.Wigg, 

 A. L. S. examined thefe tumours, I can fafely pronpunce them no-- 

 thing more than the fubftance of the frond fwpllen, and caufed, as 

 I imagine, by fome marine infedl, the fame being, though not fo fre- 

 quently, obfervable upon other FucL It were eafy to enlarge upon, 

 this fubjecl, and produce many fimilar inftances of error; but as this 

 one is fufficient to eftablifh my point, 1 fhall refrain from faying more 

 at prefent, as I may probably at fome future time lay before this So-- 

 ciety a few remarks more particularly relating to the mode of ftudti- 

 fication that obtains in thefe vegetables. 



Having, on the foregoing accounts, been long confcious of the 

 greater facility which woujd attend our inveftigation of the niarine 

 Alga^ could we fix witli tolerable precjfion the times whei;i.we njight 

 expe£l to gather them at maturi y, I have conflantly habituated 

 myfelf to commit to writing at what months I have found the.difr 

 ferent fpecies in fruit; and though my lift mnft neceffarily be im- 

 perfeft, as well becaufc I am obliged to rrufl: to the winds and waves, 

 the nature of our ftiore not allowing us to vifit them in their places 

 of growth, as becaufe we find upon our coaft only a limited num- 



6 ber, , 



