.\h,ssu,n. CRUCIFKK.E. 110 



5. LOBULARIA, Dosv. (New Latin lubulUs, vl little loho, presuniubly 

 ill reference to the two-parted or lobed hairs.) — A small group of Old World 

 plants, chiefly of the Mediterranean region, often united with Alt/ssum, but of 

 distinct habit and with very ditt'erent and characteristic pubescence. — .lour, \^^>t. 

 iii. 102 (1814) ; Prantl in Engl. & Prantl, Nat. Pflanzenf. iii. Ab. 2, 195. Ao«iy, 

 Adans. Fam. ii. 420. Aduseton, Adans. 1. c. ii. (23). Kaiu'ga, U. IJr. in Denh. 

 »fc Clapp. App. 214. — The name here retained is the earliest desirable generic 

 designation, since one of Adansou's names was not Latinized and the other 

 spelled in two ways by the author himself, who ccnnpletes their confusion by 

 transposing them in his prefatory errata. [By R L. Robinson.] 



L. MARfxiMA, Desv. 1. c. (Sweet Alyssim.) Perenniiil, lirancliiiig near the b.-U'o, wmie- 

 tinies a little woody below: branches sleuder, leafy: leaves oblong-laiiceuhite to linear, 

 appressed-pubescent witli hairs attached in the middle : racemes numerous, becoming elon- 

 gated ; pedicels widely spreading or divaricate, 3 lines in length : flowers white, fragrant : 

 petals fully twice as long as sepals ; blades suborbicular, entire, patulous : filaments enlarged 

 below but not toothed : capsule orbicular, a line in diameter; cells 1 -seeded. — Ctif/i'Ja 

 vian'lima, L. Spec. ii. 652. A/i/ssum marifiititim, Lam. Diet. i. 98; !)(,'. Syst. ii. 318 

 Koniqa viarithnn, R. Br. I.e.; Britton, Mem. Torr. Club, v. 175. — Cultivated and occa- 

 sionally spontaneous or somewhat established by roadsides. (Adv. from Ku.) 



6. ALYSSUM, Tourn. (Etymology, u privative, and AiWa, madness, 

 the plants having been regarded in ancient times as an antidote for hydrophobia, 

 see Pliny, N. H. xi, 57, 95.) — Herbaceous or suffrutescent plants, natives of the 

 Old World north of the tropics. One species is indigenous in Alaska and another 

 of different section is more or less established in the United States. — Tourn. 

 ace. to L. Gen. no. 533; DC. Prodr. i. IGO; Reichenb. Ic. Fl. Germ. ii. 18-21 : 

 Benth. & Hook. G?n. i. 73. [By B. L. Robinson.] 



§ 1. EuALYSSUM, Boiss. Filaments laterally toothe<l : cells of the fruit 

 2-,seeded. — Fl. Orient, i. 264. — Alaskan perennial (and many ()M Worhl 

 species). 



A. Americanum, Greene. Low, spreading, densely stellate-pubescent, perennial • stems 

 decuialieiit, 3to 5 inches in height, leafy up to the subcorymbose inflorescence : leaves spatn- 

 lato, i>aU' al)ove, white beueatli, entire, 3 to 6 lines l<)ng, a third as broad, rounded at the 

 apex: racemes even hi fruit but an inch in length; peilicels divaricate, liecoming 3 lines 

 long: sepals ovate-oblong, obtuse: petals with suborbicular narrowly notch<-d blade and 

 very slender claw: filaments appendaged : capsule broadly obovate. nearly 2 lines long, 

 witii a slender persistent .style less than half its length. — Pittonia, ii. 224. — This plant 

 appears to stand close to A. wmilitnnm, L., and better fruiting sj>ecimen8 are necessary to 

 prove with much certaintv its di.<tiuctiiess from this and other closely related species of the 

 Old World. 

 § 2. I'siLONEMA, C. A. Meyer (as genus). Filaments unappendaged : petals 



cuneate : cells of the fruit 2-seeded. — Meyer in Ledeb. Fl. Alt. iii. 50. 



A. CALYcfNiTM, L. Low Spreading annual, stellate-pubescent, branching fmm near the haw : 

 leaves numerous, .small, sjiatulat*', entire, a.scending: racemes becoming 2 to 8 incli.« lung; 

 pedicels 1 to 2 lines in length: calyx wholly or partially persisting until the niainrity ..f the 

 fruit: petals small, white or nearly so, scarcely .surp:i.<sing tb.- .«ep:ils : fruit ...rl.i.nlar, 

 double convex but with thin margin. —Spec. ed. 2, ii. 90S; Wats. & Coulter in Jlniy, Man. 

 ed. 6, 68. A.ali/ssoidrs, L. Syst. e<l. 10. ii. 1130. C/.//wo/a alytsoides. L. Spoc. 6.'.2. — 

 Uoadsides, etc., across the continent, not infrrquciit ; fl. May. Jnne. (Adv. from Kn.) 



