482 APPENDIX. No. V. 



Titality in tlie embryo, but may be considered as the natural structure of 

 that primary di^^sion ; seeds without albumen occurring only in certain genera 

 of the paradoxical Aroideas, and in some other Monocotyledonous orders 

 which are chiefly aquatic. 



5. Doubts may be entertained of the identity' of particular species. On thris- 

 subject I may observe, that for whatever errors may be detected in these lists, 

 I must be considered as solely responsible ; the insertion of every plant con- 

 tained in them being founded on a comparison of specimens from the various 

 regions of which their existence in the particular lists imphes them to be 

 natives. The only exception to this being Lipocarpha argentea, of which I 

 have not seen American specimens ; as a native of that continent therefore it 

 rests on the very sufficient authority of Baron Humboldt and j\I. Kunth. 



In my remarks on the natural orders, I have already suggested doubts 

 with respect to certain species included in the lists, and shall here add a few 

 observations on such of the others as seem to require it. 



Acrostichum Aurexim L. was compared, and judged to agree, Avith Ame- 

 rican specimens; and I have therefore placed it in the 2d list, without, 

 however, meaning to decide whether those plants originally combined v.-lth 

 A. aureum, and now separated from it, should be regarded as species or 

 vaneties. 



Fuirena iimbellala L. fd. from Congo has its umbels somewhat less divided 

 than either the American plant or that from the continent of India ; but from 

 specimens collected in the Nicobar Islands, this would apjiear to be a variable 

 circumstance. 



Glor'iosa superha L. which seems to be very general along the whole of the 

 west coast of Africa, is cons'dered as a variety of the Indian plant by M. 

 Lamarck. 1'his African variety has no doubt given rise to the establishment 

 of the second species of the genus, namely G. simplex, wliich Linnaeus adopted 

 from Miller ;* and which IMiUer founded on the account sent to him by M. 

 Richard, of the Trianon Garden, along with the seeds of what he called a new 

 Gloriosa, brought from Senegal by Adanson, and having blue flowers. 

 Miller had no opportunity of determining the correctness of this account ; for 

 tiiough the seeds vegetated, the plant died without flowering ; but he added a 

 character not luilikcly to belong to the seedling' plants of G. 3uperba, namely 



* Gloriosa -ZyMill. Did. cd. 7. 



