CARYOPHYLLACE^E 49 



Woods and grassy hills. May-July. P. serpvllacca Weihe with shorter, 

 rounder leaves, also occurs. Some of the French botanists consider P. comosa 

 and P. nicaeensis sub-species of P. vulgaris. 



P. calcarea Schult. Branches many, rooting and proliferous. Root-leaves 

 rosulate, stem-leaves oblong or lanceolate. Inner sepals longer and broader than 

 the obcordate capsule ; central nerve branching above the middle. Flowers blue, 

 pink, or white. 



Dry banks, woods, and limestone hills. May-July. La Sainte-Baume near 

 Nans. 



P. monspeliaca L. A slender annual, very distinct from the other species. 

 Stems simple or branched, stiff and upright. Leaves linear-lanceolate, acute. 

 Central nerve of the wings branched but not uniting with the lateral nerves ; 

 capsule pendent, twice as long as broad. Capsule broadly winged, longer than 

 the pedicel. Arillus very small. Flowers greenish-white, rather large. 



Grassy places, hill-sides, olive terraces. May-June. 



I am indebted to Mr. Bicknell's " Flora of Bordighera and San Remo " (1896) 

 for many of the distinguishing characters of these difficult plants. 



P. Chamrtbuxus L. occurs in the lower Maritime Alps and in the woods of 

 Montrieux (Var). P. exile DC. is very rare in sandy places, and P. amara L. 

 and P. alpina Perr. et Song, sometimes occur in the mountains. 



FRANKENIACEjE. 

 FRANKENIA L. SEA HEATH. 



F. pulverulenta L. A much-branched spreading annual. Leaves obovate, 

 flat puberulent beneath, glabrous above, contracted into a short ciliated petiole. 

 Flowers small, mauve, sessile, in dichotomous terminal cymes. Petals emargin- 

 ate, much shorter than calyx. 



Maritime sands, not common. May-August. 



F. hirsuta L. A perennial with thick root-stock, and hard, almost woody 

 stems. Leaves linear or linear-lanceolate, rather fleshy, ciliate at base, margins 

 recurved. Flowers pink, whitish, or pale violet, rather larger than in the 

 last species, in terminal clusters. Petals toothed, almost equal in length to 

 calyx. 



Var. intermedia Boiss. 



Stems tomentose, leaves long ciliate, calyx hispid. 



Var. lasvis Boiss. = F. Isevis L. 



Stems glabrous or finely pubescent, leaves shortly ciliate, calyx glabrous. 



Maritime rocks and banks. May-July. 



CARYOPHYLLACE^E. 



Tribe I. SILENE^E. Stipules o. Calyx divided above into 4-5 lobes. Disk 

 elongated, bearing the petals and stamens. Styles free. Claw long. 



* Styles 3-5 ; capsule 5-10 valved. 



Styles 5 ; capsule 5 or 10 valved LYCHNIS. 



Styles 3 ; capsule 3 celled, indehiscent CUCUBALUS. 



Styles 3 ; capsule i celled, 6 valved SILENH. 



** Styles 2 ; capsule 4 valved. 



Calyx with scales at base ; embryo straight DJANTHUS. 



Calyx without scales at base. 



Calyx bell-shaped, claw short GYPSOPHILA. 



Calyx tubular, claw of petals long. Flowers i or 2 at the nodes VELEZIA. 



Calyx tubular ; claw long; flowers in terminal corymbs SAPONARIA. 



