— 157 
saepius 1" longi. — Calyx 6-sepalus; sepala decidua, lanceolala, subobtusa, viri- 
dia, margine papillulis paucis grosse subdenticulata, totaque superficie breviter pa- 
pilloso-hirtula. 112-—2"" longa et 14°" lata, petalis vix paulo breviora. — Pelala 
alba, (in genere) minutissima, 2—21%"" longa: superiorum lamina appendicem paulo 
longitudine superans, paulo ultra medium 7—9-partila (3-partita cum laciniis usque 
ad basin 3—4-partilis), lacinula media vix nisi situ distinguenda, omnes lineari-spa- 
thulatae obtusae, exteriores gradatim breviores; pars integra laminae late-obovata; 
appendices unguiculares subhyalini obovato-cuneati, paulo supra laminae basin intus 
produeli, apice truncali et reflexi margineque praeserlim apicem versus inciso-denti- 
culati. Inferiora simplicia, lamina lineari-spathulata, appendix minutus vix 1/7 su- 
perans obovatus. — Tu bus staminalis ?/;"" longus, superne cireumcirca in discum 
excentrieum inferiore latere angustum v. obsoletum margine sublacerato-denticulatum 
supra perminute hirtellum productus. -- Stamina cire. 17, 21/7" fere longa: fila 
menta anguslissima (1/4"" lata). lineari-subulata, glaberrima, mox decidua; antherae 
ovoideae , truncatae, basi cordato-bilobae, leves. Grana pollinis ovoideo-ellipsoidea, 
1/%0—1/0"" longa. — Ovarium cylindricum, basi in slipitem brevem aitenuatum, 
apice dentibus tribus turgidissimis,  ovoideis, calloso-apiculatis eo duplo brevioribus 
coronatum, undique papilloso-asperulum. -- Ovula imbricata, in quaque placenta 
cire. 25—35 tri- v. subirregulariter 4-serialia. — Capsulae erectae, imbricatae, 
subchartaceae, pallide-olivaceae, subteretes, pedicellis 4-plo 5-plove longiores, 6°” 
aequantes, obovoideo-subelavalae apice truncalae lateque apertae brevissime v. ob- 
seure 3-dentatae. — Semina minulissima, 5/;"" longa. reniformia, fusca v. nigri- 
cantia, crebre scrobiculato-subechinulata. 
Habitat in Asia minore (Aucher-Eloy. pl. exs. N. 2623 in hb. Boiss.! et DC.!); 
in vallibus sinaiticis (G. Ehrenberg in hb. Reg. Berol.!). Verisimiliter hujus loci est 
R. pruinosa Dene. in Bové pl. exs. N. 151, inter El Tor et Sinai lecta, sed speci- 
minulum nob. obvium floribus et fructibus destilutum, nec certe enucleandum. 
Species haec, eliam si R. pruinosae el muricatae habitu simillima, nihilominus 
caracteribus allatis eximie est distincta, et praeler alia seminibus serobiculalis mino- 
ribus facile dignoscitur. 
27. R. pruinosa. Del. (Tab. nostr. VIII, Fig. 109. 
Delile Flor. aegypt. p. 15 (1813); Spreng. Syst. IE, p. 464; G. Don. Gen. Syst. 
1, p. 259; Dietr. Syn. IT, p. 29: Walp. Repert. IE, p. 752. 
