MENTZELIA 



herbs. 



tary or 

 5 or 111 



MERTENSIA 1005 



loose tube at first and afterwards 



vhci 



.ilV.n.l I ■ i I ;ii-.- not generally 



in .-iili. i r. Although M. 



Li mil. n ],.,- hi I J li-. II :i liiiln r ronimon plant in 

 ,Milti\:iii.iM. it is little known in the wild, being 

 lii-.il,;,li|v- a native of central Calif. The seeds 

 .'.In.uM !"■ M.vvn where the plants are to remain, as 

 till y do nut li.-ar transplanting. 



A. Color of fls. ijellou-. 

 B. I'ts. openiuff in hright sunsjtliw. 

 c. Petals 1 in. long. 

 Lindleyi, Torr. & Gray (Bartdiiia afirea, 

 Lindl.). Pig. 1393. Annual: stem 1-3 ft. high, 

 branched and straggling: Ivs. 2-3 in. long: fls. 

 about 2>^ in. across, bright yellow, very fra- 

 grant in the eveniuL', lirartial; petals 5, broadly 

 obovate, nearly as I. ma. I as Ichlc, rounded at the 

 apex except i 



tral Calif. B.M. 



CC. Petals 2-2)4 in. long. 



Isvicaiilis, Torr. & Gray. Biennial: stem 2-3 



ft. high: Ivs. 2-8 in. long: fls. yellow, 2J^-3 in. 



across, bractless; petals lanceolate, acuminate. 



Neb. to Calif. B.B. 2:459. 



EB. Fls. opening towards night. 



Hilda, Torr. & Gray. Biennial: stem somewhat 

 slender, 1-5 ft. high: Ivs. 1-3 in. long; fls. creamy 

 white, 1K-2K in. across, usually bractless; petals 

 10. Dakota to Kans., Colo, and Tex. B.M. 5483 (as Bar- 

 toniamida). B.B.2:458. 



AA. Color of fls. pure white. 



ornita, Torr. & Gray. Annual : stem 2 ft. and more : 

 Ivs. 2-6 in. long: fls. 5 in. across, opening towards night, 

 fragrant, usually bracted; petals 10; stamens 200-300. 

 Dakota and Mont, to Tex. E.H. 1878:430. B.M. 1487 (as 

 Bartonia decapetala\ B.B. 2:459. 



M. B. CouLSTON and W. M. 



MENYANTHES (Greek. 7iieii, a month, and anihos, 

 flower; perhaps because it flowers for about a month). 

 GenlianAeeie. BrcKBEAN. A genus of 2 species of 

 small perennial bog plants with creeping rootstocks and 

 small, 5-lobed white or purplish fls. borne in late spring. 

 They are procurable from dealers in native plants. The 

 genus is one of the few aquatic groups in the gentian 

 -family. It is allied to Limnanthemum, but the fls. of 

 the latter ire n t I ear le 1 or creste 1 on tl e f ice as tl e 

 «re Mel^>^ tie L ill alternate stalke I co oUi 

 s ewlat f ni el or 1 ell lapel stamens m erted on 

 the tubeof thecoiolla hj pofej nous glands o style long 



trifohS,ta L nn BncKBCAN Abo it 9 18 m h gh 

 1 lion ol o te 1 1/^ n lo g ra e e 



north te uperate reg ons B B ' 6 

 ^ -Tl e 1 s are sa d to be ed in Per 



1393. Mentzelia Lindleyi < ',1. 



Soc. 17:438, 1880) into tu.. m-.iU]is, based on the anthers. 

 The 2 species descrilini bil..w l.olnni; to the group with 

 small, oblong, versatile antbers, wliii-li aro fastrncd at 

 the middle rather than the base. They arc Inirdy s]niiig- 

 blooming plants with about 3 Ivs.. ami IN. i-l'., in. 

 across. These rare plants are procurable; lioni Hutch 

 bulb-growers. They are pretty, small-fld., early-bloora- 

 ing, hardy, fragile plants which persist well under good 

 garden cultivation. 



A. Blade of petals odlaneenlate, ohtnse. 

 Cauo4sica, Bieb. Tip r: ■•r.u-r ,■,.,■..]]., -, lih. iits appen- 



corms sessile. Caura . , 1 •• > r. M ■• > ', 



AA. Blade ../ i" •'"/- .'■'■"■. "'■'■•'' . "- "'■■. 

 soboliSera, Fisch. & Mey. Segments not appendaged: 

 a very small new corm produced at the apex of a shoot. 

 Asia Minor, Persia. 

 M r th ca s advert sed by \ an T be gen 



J N CERirD I 1 W M 

 MERTflNSIA (after Mertens a C i I tin t) 



VI 



of 



