340 ENUMERATIO SPECIERUM VARIETATUMQUE GENERIS DIANTHUS. 



but similarly they must have been merely waifs from some of the 

 upper reaches of the Thames. 



Kouleria cristata. Uxbridge Common. 



And since the above : — 



JHaiUhus Anneria. On rough gravelly banks of the railway 

 between Uxbridge and West Drayton. 



Polijyonuiii mite. Near West Drayton. — P. minus. Shallow 

 drains on Harefield Moor, 



It will thus be seen that Orchis pyra7Hidalis, O. militaris, Habe- 

 naria chlorantha, and Avena pubescens are happily not yet lost to the 

 county flora. 



ENUMERATIO SPECIEEUM VARIETATUMQUE GENERIS 

 DIANTHUS; CHARACTERES COMMUNES SECTIONI- 

 BUS INCLUDENS 



AucTORE F. Newton Williams. 



Genus Dianthus. — Calyx tubulosus, 5-dentatus, tenuiter et 

 aequaliter multistriatus, nervis parallelis ad quodque sepalum 

 7, 9, V. 11 (3 in FroUfer astro) parte membranacea inter 5 nervorum 

 fascicules ; bractese [i. e., squamte calyciuae) per paria calycem 

 involucrum cingeus, paria inaequalia. Petala 5 ; laminae abrupte 

 attenuatee ssepius in ungues elongatos, Integra multidentata v. fim- 

 briata, rarissime retusa. Stamina 10. Torus sa^pius in gyno- 

 phorum stipitiformem plus minus elongatus. Ovarium uniloculare ; 

 styli 2, basi liberi. Capsula cylindrica oblonga v. rarius ovoidea, 

 apice dentibus valvisque 4 dehiscens. Semina orbiculata v. dis- 

 coidea, supra convexa, compressa, concavave parum infra, ad 

 medium faciei interioris planae v. concavre umbilicata. Embryo 

 rectus, in albumine stepius excentricus. Herba3 perennes uonnun- 

 quam annu^e, rarius suffruticosi ; ramis articulatis, teretibus v. 

 tetragonis. Folia exstipulata, angusta graminea, sffipe glauca ; 

 marginibus scabris. Inflorescentia terminalis ; flores solitarii 

 cymoso-paniculati fasciculati v. capitati, vulgo rosei purpureive, 

 nunc rubri, rare albi, nunquam lutei. 



Subgenus I. Carthusianastrum.— Caudex animus v. perennis ; 

 pereunibus turiones decumbentes steriles emittens atque multos 

 caules adscendentes floriferos. Inflorescentia cymoso-paniculata, 

 v. fasciculis dichotomis v. capitulis aggregatis. Petala semper 

 dentata. Torus parum elongatus. 



Sectio Armerium, I. — Herba) annuse. Caules teretes. Bractese 

 2. Calyx dentibus 9-11 nerviis. Petala barbulata. 



1. D. Armeria L. 2. D. pseudarmeria M. B. 



var. subhirsutus Schur. 3. D. corymbosus Sib. 

 var. armeriastrum Wolfn. var. Poiretianus *SV/-. 



var. pseudarmeria Wierzb. 4. D. teuuiflorus Griseb. 



var. subacaulis Schur. 5. D. glutinosus B et Hid. 



