30 MR. F. N. WILLIAMS ON THE GENUS SILENE. 
Series 2. Macranthe. 
Species 1-3-floree, floribus breviter raro longe pedicellatis ; aut flores 
in dichasio duplici, aut dichasii ramo altero abbreviato in foliorum 
axillis geminati, calyce brevius pedicellati; calyx elongato-clavatus 
seu in speciebus paucis uni-vel biflorus, floribus longe pedicellatis, 
breviter clavatus. 
A. Caules e foliorum rosula terminali lateraliter edentes. 
S. palinotricha, Schafta, pygnea, longitubulosa, heterodonta, parvula, 
ceespitosa. 
B. Caules florigeri terminales. 
a. Capsula globosa carpophoro ter quaterve superata. 
S. depressa, Porteri. 
b. Capsula carpophorum eequans vel plus minus superans. 
a, Calyx evenius. 
+ Capsula carpophorum zquans. 
S. succulenta, Uhdeana, papillifolia, thymifolia, microphylla, bur- 
manica, cretacea, infidelium. 
t+ Capsula carpophorum bis quaterve superans. 
S. arguta, xsianica, gracillima, Schmuckeri, khasiana, vagans. 
B. Calyx striis anastomosantibus. 
+ Calyx dentibus obtusis. 
S. oreophila, Aucheriana, nurensis, capillipes, Campanula, Saxt- 
fraga, Barbeyana. 
tt Calyx dentibus alternatim acutis et obtusis. 
S. fruticulosa, filipes. 
ttt Calyx dentibus acutis. 
S. multicaulis, macropoda, incurvifolia, acutifolia, fetida, Maximo- 
weinana, cordifolia, lazica. 
Series 3. Vanosilene. 
Species nanz uniflore ; calyx campanulatus. 
S. acaulis, Baumgarten. 
Series 4. Brachypode. 
Species montane caulibus strictis ; flores solitarii vel bini, longissime 
pedicellati, vel in dichasio simplici laxo ; calyx sub anthesi clavatus, 
fructifer oblongus; capsula carpophorum multies raro tantum bis 
superans. 
a. Caules florigeri e basi rosule foliorum terminalis lateraliter 
edentes. 
S. grisea, leptoclada. 
