CHAP, vi..] ANDROMEDEiE. 117 



ehovm at (rZ). The cells of the capsule, when 

 ripe, open down the centre, and the seeds 

 which are angular, are attached to a five-lobed 

 placenta. 



Lyonia is a genus established by the American 

 botanist Nuttall, because the plants it contains 

 have the margins of the valves of their capsules 

 closed by five other narrow external valves. The 

 plants are natives of North America, and their 

 flowers are generally small. Lyonia Mariana may 

 serve as an example of this genus, which is gene- 

 rally adopted by botanists. 



It would be useless to enter into details of the 

 other genera formed out of Andromeda, as they 

 are not generally adopted ; but, perhaps, it may 

 be worth mentioning, that the well-known Andro- 

 meda floribunda is placed by Professor Don in a 

 new genus which he calls Leucothoe. 



St. Dabeoc's Heath, or Irish Whorts, a little 

 heath-Hke shrub, common in Ireland, is one 

 of those plants which have puzzled botanists 

 exceedingly. It has been called successively 

 Erica, Andromeda, and Menziesia, Dabcecia ; then 

 Erica Hibemica, next Menziesia polifolia, then 

 Vaccinium Cantabrieum and lastly Daboecia ^yoU- 

 folia. It is probable, however, that it may 

 even yet be doomed to undergo other changes ; 

 as, from the construction of its anthers, which 

 are linear, and arrow-shaped at the base, and 



