SiG Mr. Haworth's Description of new Succtdent Plants. 



racy has been called Classical in this country. It gave us still 

 but thirteen species of Aloe, and amongst these but four species 

 belonging to the present genus Gasterici; viz. verrucosa, cari- 

 nata, macidata, and lingua; and did not make a suigle section 

 of the genus Aloe for them, nor even for the aforesaid genus 

 Wiipidodendron. 



Three years after this period, in 1792, (although I had long 

 before collected Aloes,) I first beheld the rich Gardens of Lon- 

 don and Kew ; and published in 1 794 all the Mesemlrryanthema 

 then known, and also sixty species and many varieties of Aloes 

 in nominated sections, in the 7th volume of the Transactions 

 of the Linnaean Society in 1804; in a paper which was given 

 to the Society three years before. The Gasterice were pub- 

 blished in that paper in a separate section called Curvifi>or^, 

 in number, seven species, and five named varieties ; and R/iipi- 

 dodcndron was given in a distinct division called AnomaLjE, 

 along with the still anomalous Aloe mriegata. 



A little prior to this, Thunberg had published his Disserta- 

 tions on Aloe, &c. which I have not to this day seen, and can- 

 not profit by : but the present subject was not there much 

 advanced, as appears by the second edition of Aitpn's Hortus 

 Kewensis, in five volumes octavo, between the years 1810 and 

 1813, adopting nearly all the writers' then published species 

 and varieties of succulent plants. 



The genus Aloe by Willdenow, in his edition of Linnaeus's 

 Species Plantarum, did not appear till 1 799 ; but seventeen 

 distinct species being given, and only four of the Gasterian 

 species amongst them, with little improvement, and without 

 one single section. 



But in 1809, Willdenow in his Enumeratio (many Aloes 

 having then been published in the Botan. Magazine, from my 

 own collection) gives twenty-five species of Aloe, and in two 

 sections; having still only three species belonging to Gastcriay 

 and these not even in a distinct section. And it was not un- 

 til 1811, in a work which I never saw, and which is cited 

 Willd. Bermerk, that he divided Aloe into, I believe, three 

 genera, viz. Aloe, Apicra, and Rhipidodendron. 



Before this, however, in 1809, Duval, in his Catalogue of 

 the Succulent Plants in Horto Alenco7iio, divided Aloe into 

 three genera, with good characters ; viz. Aloe, Gasteria, and 

 Haxxortliia ; the last of which Willdenow included in his genus 

 Apicra. Duval's genus belongs to the species with a bi- 

 labiated flower, but he includes the Aloe spiralis of prior 

 Authors, which has a regular flower ; and which therefore I 

 place in the genus Apicra. Of this last genus I have not seen 



Willdenow's 



