(2.) Cheiranthiis arhuscula Lowe, a shrubby species with lilac 

 flowers, related to two species found in Madeira. Webb and 

 Bcrthelot placed plants of this type in a genus Dichroanlhus, the 

 name evidently from the fact that in some of them the flowers 

 change color. 



(3.) Lotus floridits (Lowe) Masf., with f. sidphurea (Lowe) 

 having the flowers pale sulphur or straw color instead of orange 

 and brown as in the type. I saw only the typical form which 

 occurs in abundance. This is a silky gray or villous plant now 

 usually regarded as a local form of L. glaitcus Alton of Madeira. 



No. 2. — View from Villa Baleira, showing two date palms. The palms do not bear 

 edible fruit on the Madeira group. The island near the center is Ilheo de 

 Cima, on which the light-house stands. 



Lowe found L. glaiicus in one place on Porto Santo, and also an 

 intermediate form. It has latterly been assumed that floridiis 

 is only a xerophytic stage of glauctis, but the fact seems to need 

 experimental demonstration. Lowe's intermediate may have 

 been a hybrid, and it is significant that at least some glaucus 

 retained its characters in Porto Santo. L. floridus occurs also 

 on the islets Cenouras and Nordeste, off Porto Santo. 



(4.) Lotus loweanus Webb, flowers dark dull blackish purple. 

 The Index Kewensis gives this only from the Canaries, but this 

 is a mistake. It is peculiar to Porto Santo, where it was dis- 

 covered by Webb and Lowe in 1828. 



