GIBRALTAR PLANTS. 139 



cordatis obtusissime crenatis subtus prsecipue 

 tomentosis, verticillastris in spicam longissimam 

 densam confluentibus, bracteis membranaceis 

 ovato-lanceolatis acuminatis violaceis, calycis 

 arcuati villosi dentibus lanceolato-subulatis, 

 corolla? caBruleo-violaceae tubo valde exserto. 

 N. tuberosa, L., non Desf. Fl. Atl. 

 Hab. Portugal, South of Spain, Sicily. 



OBS. This species so closely resembles the.N. reticulata of Desf., 

 that, for a long time I called it by that name, until Boissier's 

 remarks cleared up my doubts ; and he does not think, with 

 Mr. Bentham, that the two species should he united. Boissier 

 observes, that they inhabit two different regions. " La N. tu- 

 berosa se leconnait a sa tige toute couverte de feuilles dressees 

 et tomenteuses, a son long epi terminal entre-mele de bractees 

 violettes ; la N. reticulata a ses verticilles separes, ses bractees 

 surpassent les calices en longueur, sont transparentes et reti- 

 culees, caractere, qui ne parait pas an surplus tres-constant." 

 The Nepeta reticulata may perhaps also grow in Gibraltar or 

 its neighbourhood ; however, I cannot do wrong in giving 

 Boissier's description of it, to enable my friends in Gibraltar to 

 distinguish the two species : 

 Nepeta reticulata, Desf. 



N. tota viscidula, radice tuberosa, caule quadrangulo pu- 

 bescente, foliis sessilibus oblongo-lanceolatis crenatis 

 pubescenti-viscidis, verticillastris subdistinctis, supremis 

 conflueiitibus, bracteis ovatis acumiuatis pellucidis viridi- 

 reticulatis marginem versus pallide violaceis, calycis arcuati 

 viscidi reticulato-nervosi dentibus triangulari-lanceolatis 

 membranaceo-marginatis, corollae pallidae rubrae tubo e 

 calyce vix exserto. Boiss. 



Stachys circinata, L'Her. 



Hab. South of Spain. North of Africa. 



Marrubium vulgare, L. 



Hab. Europe, Britain, Asia Minor. North of Africa. 



OBS. The Ballota hirsuta is said to grow in Gibraltar. 



