130 BULLETIN DE l'hERBIER BOISSIER. (2) 



Perenne^ diffuse cœspilosum, basi ramosissimum, circiter 30 cm. Cau- 

 liculi bifariam viscido-villosi. Folia lineari-lanceolataciliata, majora IS mm. 

 Dichasium pauciflorum ; bracteee herbacese ; pedicelli fructiferi refracti. 

 Calyx 5 mm.; sepala lanceolata acuta margine auguste scariosa. Petala 

 calyce fere duplo longiora, obovato-cuneata, in lobos 4 lanceolatos acumi- 

 natos incisa, ungue glabra. Stamina 10, episepala glandulae truncatulsß 

 insidentia, epipelala parum dimidiaque petala superantia, omnia glabra. 

 Ovarium globosum; ovula rotundata. Semina tuberculata. 



The only species of Cerastium with regularly 4-lobed petals. Habit of 

 C. alpinum. 



Hab. Nippon ; Mt. Kumaga in prov. of Kai (Tschonoski), — japonice, 

 « miyama miminagusa » . 



2. C. robustum, n. sp. (grege C. tomentosi collocanda). 

 Perenne, pilis transversis simplicibus eglandulosis vestitum. Caulis 



56 cm., Simplex sulcatus robustus, internodiis nonnullis fasciculiferis. 

 Folia late lanceolata acuta uninervia, inferiora 5-7 cm., superiora 3-4 cm. 

 Dichasium 9-12-florum; bracteee herbacese late lineares acutse ; pedicelli 

 calyce multum longiores, fructiferi erecti capsulam subnutantem sufful- 

 cientes. Sepala elliptico-lanceolata obtusa, exteriora anguste, interiora 

 late scariosa. Petala obovato-cuneata biloba, calyce 1 V2-2-plo longiora, 

 lobis subrotundis, ungue glabra. Capsula oblongo-cylindracea apicem 

 versus leviter curviuscula, dentibus rectis obtusis. Semina subauriformia 

 ferruginea tuberculata, margine leviter depressa. 



A robust perennial plant, with flrm'somewhat résilient stems, and 

 leaves thicker than in many species. 



Hab. Yezo ; cliffs on the islet of Yageshiri, off the west coast (Faurie 

 no 7165, 1891). 



3. G. alpinum var. Fischerianum Ser. (sp.) in Cand. Prodr. I, 

 p. 419 (1824); Torr, et Gray (var.) Fl. N. Amer. 1, p. 188 (1838). 



Syn. C. rigidum Ledeb. in Mém. Acad. Pétersb. v. p. 538 (1815) ; 

 C. imitabile var. rigidum Gren. Monogr. Gerast, p. 71 ; G. stellarioides 

 Moc. PI. Nutkens. ined. ex Cand. Prodr. I, p. 415 [Calques des Dessins) ; 

 C. furcatum Cham, et Schlecht, in Linnœa, I, p. 61 (1826); G. vulgatum 

 varr. macrocarpum, grandiflorum Fenzl in Ledeb. Fl. Rossica, I, p. 411 

 (1842) ; etc. 



Fischer's original spécimens, sent to Seringe under the name of 

 « C. hirsutum, » were coUected in Kamtschatka. 



