(. 3021 ) 
ARABIS COLLINA. Hitt Rock-Cress. 
Class and Order. 
TTETRADYNAMIA SILIQUOSA. 
( Nat. Ord.—Crucirer2. ) 
Generic. Character. 
_ Stliqua linearis, valvis planis medio uninerviis. Semina 
in quoque loculo 1|-serialia, ovalia aut orbicularia, com- 
pressa. Cotyledones plane, accumbentes. Flores albi, aut 
rarius-rosei. DC. 
Specific Character and Synonyms. 
Arazis* collina; foliis oblongo-ovatis sinuato-dentatis pu- 
bescentibus pube stellata, radicalibus petiolatis cau- 
linis sessilibus, siliquis pedicello octies longioribus 
erectis. : 
Aranis collina. “ Tenore Prodr. Fl. Neap. xxxix.” De 
Cand. Syst. v. 2. p. 241. Prodr. v. 1. p. 148. Spreng. 
Syst. Veget. v. 2. p. 893. 
Descr. Root “ perennial,” small, fibrous, throwing up 
two or more stems. Stems six to eight inches high, erect, 
leafy. Leaves pubescent with minute, downy, stellated 
hairs, those of the root spreading, numerous, spathulate 
and petiolate, large, those of the stem ovate, or ovato- 
oblong, sessile, smaller upwards, and semiamplexicaul, all 
of them coarsely and even sinuato-dentate at the margin. 
Raceme terminal, leafless and destitute of bractee, always 
drooping when in flower. Pedicels long, slender, quite 
q | aap Gee me glabrous. 
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* This word signifies native of Arabia; ‘a territory, of which the dry nature 
Sf this plant and a general preference of arid spots, caused it to be pres 
