342 THE JOURNAL OP BOTANY 



In the annual report of the Botanical Exchange Club for 1864, 

 p. 7, discussing V. Curtisii and V. sahidosa, Mr. J. G. Baker 

 says : — " We do not see that there is any important character to 

 rely upon to separate these perennial-rooted sandhill pansies from 

 one another, and would consider them to form an intermediate 

 link connecting the typical tricolor and typical luteal' 



Syme, English Botany, ii. p. 26 (1864), includes the name of 

 " V. sabulosa Boreau " among the synonyms of V. tricolor subsp. 

 Curtisii, without mentioning any specific localities for the former. 

 The object of the present note is to show that this is not a British 

 plant ; and that the examples that have been so named almost 

 without exception come under V. tricoloi' var. Pesneaui Lloyd, which 

 is a plant probably as widely distributed as var. Curtisii itself — in 

 Britain ; for Eouy & Foucaud, Fl. de France, iii. p. 51, state that 

 they have not seen the latter from any localities on the French coast. 

 An index to var. sabulosa may be best furnished from its 

 synonyms : — 



V. tricolor var. maritima A. F. Schweigger, Bemerkung auf 



einer botanischen Eeise von Konigsberg iiber Pillau liingst 



dem Strande nach Memel, in Konigsberger Archiv, i. p. 210 



(1812) ; et Hagen, Chloris Borussica, p. 88 (1819). 



V. tricolor var. vulgaris Bosch, Enum. Plant. Zeel. Belg. p. 10 



(1814). 

 V. littoralis Sprengel, Novi Proventus Hortorum academicorum 



Halensis et Berolinensis, p. 43 (1818). 

 V. tricolor var. sabulosa Cand., Prodr. i. p. 304 (1824) ; et 



Dumort., Fl. Belgica, p. 116 (1827). 

 V. tricolor var. syrtica H. G. Florke, ex Mert. & Koch, Deut- 



schlands Flora, ii. p. 272 (1826). 

 V. arvensis var. syrtica Bosch, Prodr. fl. Batav. p. 35 (1850), 

 V. tricolor var. arenaria Bonder, Fl. Hamburg, p. 137 (1851). 

 V. sabulosa Boreau, Notes et observations sur quelques Plantes 

 de France, p. 53 (1853), extr. Bull. Soc. Industr. Angers, 

 xxiv, n. 6, p. 335. 

 Some of the above references are given in extenso, as they are 

 taken from little known floras or opuscula mentioned in some 

 critical notes attached to Gay's specimens in Herb. Kew. — valuable 

 and interesting observations by this scrupulous botanist and 

 accurate worker, whose critical research into the structural 

 differences of closely allied plants has hardly been appreciated by 

 later workers in the herbarium. There is no doubt that the above 

 names include two distinct forms of the same variety, which, 

 hitherto, have not been properly distinguished : — two forms which 

 I distinguish below as forma concolor, in which all the petals are 

 blue-violet, and forma discolor, in which the large lower petal is 

 yellow. Lange, however, Haandb. Danske Fl. ed. 2, p. 177 (1856), 

 mentions V. tricolor var. arenaria, and V. tricolor var. syrtica. 

 Though the Danish text is somewhat obscure, I believe that the 

 first is identical with f. discolor, and the second with f. concolor. 



De Candolle's original brief description of V. tricolor var. 

 sabulosa is as follows : — Caulibus plurimis diffusis, foliis remotis 



