352 MR. F. N. WILLIAMS ON THE GENUS DIAETHUS. 



DIANTHUS, Linn* 



Calyx tubulosus,'5-dentatus, tenuiter et aequaliter multistriatus, 

 nervis parallelis ad quodque sepalum 7, 9, vel 11 (3 in Proliferas- 

 tro) parte membranacea inter 5 nervorum fasciculos ; bracteis (i. e. 

 squamis calyeinis) per paria calycem involucratim cingentibus, 

 paribus ssepius inaequalibus. Petala 5 ; lamina abrupte attenuata 

 ssepius in unguem elongatum, integra multidentata vel fimbriata, 

 rarissime retusa, elegantia saepe maculata. Stamina 10. Torus 

 saepius in gynophorum stipitiforme plus minus elongatus. Ova* 

 rium uniloculare; styli 2, a basi distincte. Capsula cylindrica 

 oblonga vel rarius ovoidea apice 'dentibus valvisve quatuor de- 

 hiscens. Semina diseoidea vel orbiculata, supra convexa, infra 

 plane compressa concavave parum, ad medium faciei interioris 

 planse vel concavae umbilicata ; in placenta columnari imbricata. 

 Embryo rectus, in albumine ssepius excentricus. 



Herba> pereunes nonnunquam annuae, rarius suffruticosae, ramis 

 articulatis, teretibus vel tetragonis, ad nodos tumescentibus. 

 Folia exstipulata, angusta, vulgo graminea, supremis subulatis, 

 saepe glauca, margine scabra. Inflorescentia terminalis ; flores 

 solitarii cymoso-paniculati fasciculati vel aggregato-capitati, 

 vulgo rosei purpureive, nunc rubri, rare albi, nunquam lutei. 



Subgenus I. CARTHUSIANASTRUM (p. 358) 



Caudex annuus v. perennis ; perennibus turiones decurabentes steriles 



emittens atque caules adscendentes floriferos. Folia subfloralia herbacea 

 subhcrbacea, v. omnino scariosa. Inflorescentia cymoso-paniculata, v. 

 fasciculis dichotomis v. capitulis aggregatis; in suffruticosis iDterdum 

 floribus solitariis. Calyx subcylindricus. Petala semper dentata. Torus 

 parum elongatus. 



Sectio i. Armerium (p. 359). 

 Herbae annuae. Caules teretes. Folia subfloralia herbacea. Bractese 2. 

 Calyx dentibus 9-11-nerviis. Petala barbulata. 



D. Armeria, pseudarmeria, corymbosus, tenuijlorus, glutinosus. 



Sectio ii, Suffruticosi (p. 361). 

 Perennes suffruticosi. Folia subfloralia herbacea. Inflorescentia non 

 densa ; flores cymis paniculatis v. fasciculis dichotomis, v. solitarii. Petala 

 barbulata. 



* In the following enumeration, only the more important synonyms have 

 been cited under each species, the remainder being incorporated in the index, 

 PP. 470-478. 



