Ealrema. CRUCIFER/E. 1|G 



:iiul natural genus of the Old World, dibtiuguiHlied from Sisijmhrium liy its wliit« 



fluvvei-s and characteristic foliage rather than by technical cliaracterh. — Kaiu. 



ii. 418 (the earliest known post-Linnean reference; this name is ascrihi-d to 



.Alatthioli by Ruppius) ; DC. Syst. ii. 4.SS ; Ueichenb. Ic. V\. (jt-nn. ii. t. GU ; 



Prantl, 1. c. 168. [By B. L. Robinson.] 



A. OFriciN'ALis, AudfZ. Biennial, liispid-jmbf.sient or <iuiln glabrous: xtein tall, l<-r«te, uftcii 

 branched above: leaves ovate-deltoiil to sulxjrbicular, broa<ll\- cordate, Hinuate-tixjtlied, I Ui 2 

 inches in diameter, tliin and groeu upon both .>*urfacos, sleuder-petioletl : Howen* nitbor mtmll 

 and crowded: siliques firm, spreadiii<;-ascending, tapcrinj^ .it the apex, 1^ imlr 

 length, on short stout .spreading ])eiliiels. — Andr/. in Marsthall v. liiebcrst. 1 

 iii. 445 ; DC. Syst. ii. 489. yiV^.s/;rt«m .l//i«n«, L. Spec. ii. 660. :^ is;/ minium A - _ 



Fl. Carn. ed. 2, ii. 26; Thome', Fl. Deutschl. ii. t. 289; Wats. & Coulter in (inty, Man wi. 

 6, 72. Alliaria AUmria,'Qv\X,ton, Mem. Torr. Club, v. 167. — Sparingly uatumlizcd ou road- 

 sides near Ge<>rget(jwu, D.C., /. D. Smith, and near New York City, Miss Rich. (Adv. 

 from Eu., Asia.) 

 25. EUTR£1MA, R. Br. (Eu, well, and Tpf//xa, an opening : in the st-ii-se of 



well perforated, referring to the often incomplete dissepiment of the capside.) — 



A small genus of ijerennials, chiefly of alpine and arctic liabiuit, atuiining it« 



chief development in Siberia, closely related to Sisymbrium but of ililVcrcnt habit. 



Leaves entire, creuate, or shallowly dentate, usually ovate, oblong or subrotund, 



often fleshy; the radical ones long-petioled. — R. Br. in Parry, 1st Voy. Suppl. 



to App. 267, t. A, Flora, vii. pt. 1, Beilage 73, *& Misc. Works, i. VXi; Beuth. 



& Hook. Gen. i. 78 ; Prantl, 1. c. [By B. L. Robinson.] 

 * Septum fenestrate. 



E. Edwardsii, K. Br. 11. cc. Glabrous root thick, fleshy, perpendiruhir stems one t^j 

 several, decumbent or nearly erect, 1 to 8 inches high : leaves entire, ovate, mostly rounded 

 at the base and obtusish at the apex; the radical and lowest cauline upon jietioles often two 

 or three times as long as the blade; the upper cauline sessile or nearly ,so: flowers siiiall, 

 pale purple or white, at first densely crowded : fruiting raceme elongated ; pedicels erect or 

 ascending, about 2 lines long ; the cajjsule lauce-oblong, about 4 lines in length — Hook, in 

 Parry, 2d Voy. App. 267, t. A, & Fl. Bor.-Am. i. 67; C. A. Mey. iu Ledeb. Fl. Alt. iii. 

 163; Ledeb. Ic. t. 258, Torr. & Gray, Fl. i. 112. SmelousUa rinerca, Walpers, Kej>. i. 171, 

 in part. Draba (?) lirvKjatn, Cham. & Schlecht, Liun^a, i. 25. SisipitbiiniH Kdicardsii, 

 Trautv. Act. Hort. Petr. i. .59. — Crevices of rocks, Digges Island. Hudson Bar, BtU, to 

 the Arctic Ocean, from CJrinnell Land, Greet y Expcd., to Alaska. (Siberia.) 



E. (OEschscholtzianum, Uouinson, n. sp. Root .slender, somewhat fibrou.s-l)ranche<l. 

 bearing at its apex one or more elongating rhizomes covered with the subulate ba-sw of old 

 petioles: leaves clustered at the ends of the rhizomes, sjtatuhite, long-i>etinl;itc. entire, 

 obtuse or roimded ; scapes half inch to two inches higli, naked beluw but bearing ju.st under 

 the inflorescence an involucre of 2 to 4 approximate lancoolntc foli.-iroous bracts: flowers 

 small, corymbose, white: fruit ase])tate ; seeds adhering to the placenta- long (mimefimon 

 months) after the falling of the valves. — Aphrniimus Esrhsoholtzinnus, Andr/. in DC. rnnlr. 

 i. 210. Oreas involiicnila, Cham. & Schlecht. Linn.<ea, i. .30, t. 1. />' 

 Benth. & Hook. Gen. i. 83, ace. to Wats. BiM. Index. 51. — An inter 

 known jdaiit growing in loose stony .soil, on mountains of rn.ila.^ka, ' 

 Aleutian Islands, Andrzejowski . The aflinities a]>])Par to bo with the prf.siKi ueii;;.» ,;i.< 

 suggested by Robert Brown ace. to Hook. Fl. Bor.-Am. i. 6S). nither than with llra<n. 

 Although the involucral leaves are exceptional, satisfactory flower- or fruiu-hnnuters for 

 the separation of this species as a roonotypic genus have not yet U^en found. 

 * * Se|)tum imperfor.ite. 



E. (?) Labradoricum, Tikcz. Dwarf, scarcely 2 inches high: stcnm (Military or ncveral. 

 l-fcwH(.\v.'nil. spriii-iiiL' from the nodes of an oblique rhizome; Icaveu entire, orat«. 



