(138) 



water. Fruit of either kind we have not seen, and are not aware of its 

 having been found in Britain. 



. This fine species may be known from the preceding by its rather 

 shorter, cylindrical joints, and more erect, branching, and obtuse points, 

 and from the following by its larger size, more gelatinous substance, and 

 by the cylindrical branches not in the least tapering at the points. 



It was discovered near Plymouth in 1840, by the Rev. W. S. Hore, 

 and has been since repeatedly found in the same place by other 

 botanists, but we have not seen specimens from any other British station. 

 On the shores of Continental Europe it is much less rare, but becomes 

 more so as we j^roceed northwards, on the British shores has ceased to 

 fructify, and has reached its northern limit in the above station. Even 

 on French specimens the fruit seems to be rather uncommon, as we have 

 not seen it on any collection of specimens from that coimtiy. The 

 favellfe " resemble those of G. setacea, but placed on shorter stalks." 



This species is said to be perennial, and if so, it differs from most 

 of its allies if not from all ; we see nothing in the appearance of the 

 plant to lead us to suppose it a j)erennial. 



It is also generally supposed to grow on rocks, but otir specimens are 

 mostly attached to CoralUna officinalis. Most of the species of this 

 genus, however, are rather rare in this country, and many of the facts 

 connected with their growth and distribution require confirmation. 



EXPLANATION OF PLATE CXIV. 



Fig. 1. — Griffithsia secundiflora, natural size. 

 2. — Apex of the frond. 

 3. — Base of same. Botla magnified. 



