THE NINTH EDITION OF THE LONDON CATALOGUE 39 



As a short notice of the Catalogue has already appeared 

 in your pages, I must ask the indulgence of your readers in 

 again bringing it under their notice. 



The clerical errors in the new edition of the Catalogue 

 are very few in number : " Bursa Bursa-pastoris " should be 

 Bursa pastoris, "Juncus obtusifolius " should be /. obtusiflorus, 

 " Carex vulpinoides " should be C. vulpinoidea. In No. 1220^ 

 " Borkh " should be Borckh. In No. 1 6 1 6 " Rosk." should be 

 Rostk. In No. I So'/e " coarclata " should be coarctata, and for 

 this variety brackets are not needed. In No. 658 " Wallr." 

 should be Walt. In No. 648 " Screb." should be Schreb. 

 Hudson wrote " Rumex Hydrolapathcum " ; Villars wrote 

 " Epilobiuin alsinifolitnn " and " Brassica CJieirantJws " ; and 

 Presl wrote " Sagina Linnei" 



In the preface to the Catalogue it is stated that the 

 generic order used by Bentham and Hooker in the " Genera 

 Plantarum " is followed. It would be well also to adopt the 

 generic limitations used by the same authors ; and that this 

 would appear to be the intention of the compiler of the Cata- 

 logue is evidenced by the adoption of AnapJialis instead of 

 Antennaria margaritacea of the eighth edition. 



In order to bring the Catalogue into agreement with the 

 " Genera Plantarum," it will be necessary to put the plant 

 which appears in the Catalogue as Erysimum perfoliatum 

 into the genus Couringia of Adanson (the Conringia of 

 Heist, who named it before 1753). In this genus its name 

 will be Couringia Perfoliata (it was the Perfoliata siliquosa 

 of Gerard). Dianthus prolifer should be placed in the genus 

 Tunica, Scop., as T. prolifera, Scop. Alisma rammculoides 

 should be Echinodorus, Rich. ; and the species should be 

 E. rammculoides, Engelm., with var. rcpens (Davies) and var. 

 zosterifolius (Fries). Festuca rotbocllioides, Kunth, should be 

 Demazeria loliacea, Nyman. Dumortier is the authority for 

 the genus. It may be stated that in the " Genera Plantarum " 

 the order Fumariacecz is merged in Papaveracece, and the 

 order Lobcliaccce in that of Campanulacea. 



The following plants are printed with a capital letter for 

 the specific name, but there does not appear to be any 

 necessity for it : Scirpus Caricis, which Retz spelt with a 

 small letter, and Prunus Avium ; while the following plant 



