[ 61 ] 



VIII. Observations on the Mesembryanthema barbata. By 

 A. H. Haworth, Esq. F.L.S. $c. 



To the Editors of the Philosophical Magazine and Journal. 

 Gentlemen, 



HAVING recently had occasion to reconsider the remark- 

 able plants which compose the section Barbata of the 

 extensive genus Mesembryanthemum, added one new species 

 to the group, and detected an error in nomenclature respect- 

 ing an old one ; I send you hereunder an amended account 

 of the whole section and its botanical characters; which, per- 

 haps, may be acceptable to the next Number of your valuable 

 Miscellany ; and I remain, gentlemen, 



Your very respectful correspondent, 

 Chelsea, July 20, 1824. A. H. Ha worth. 



Mesembryanthemum. Sectio Barbata. 



Sectionis Characteres. 



Suffrutices 2-11-entales plusve, papulosi, foliis apice radiatim 



stellato-barbatis. 



Specierum Characteres. 

 barbatum. M. (The bearded, bushy) erectum : ramulis ef- 



1. fuso - decumbentibus, foliis remotiusculis patentibus 

 apice sub-sex-radiatis, calycinis laciniis subsequalibus. 

 Mesemb. barbatum, a, Linn. Sp.Pl. 691.—Dillen. Hort. 

 Elth. fig. 234% Bot. Mag. t. 70. M. stelligerum. Nob. 

 in Synops. Succ. pi. fyc. 



Obs. Finding this plant, communicated to me by 

 Professor Williams, from the Botanic Garden of Ox- 

 ford, to be the original M. barbatum of Linnaeus ; and 

 at the same time being my M. stelligerum ,• I avail my- 

 self of this opportunity of rectifying the error, which 

 may perhaps be the most appropriately done by the 

 transposal of the names of the plants, as here adopted. 

 stelligerum. M. (The bearded, procumbent) ramis procum- 



2. bentibus elongatis, foliis remotis semierectis apice sub- 

 quinque-radiatis ; calycinis laciniis praeinaequalibus. — 

 Mesemb. barbatum. Nob. in Synops. Sticc. exclusis syno- 

 nymis. 



Obs. Priorc omnino debilior, sive procumbens, 

 ramis longe paucioribus longioribus, foliis remotioribus 



niagisqtie erectis. 



intonsum. 



