96 PORTULACACEiE. montia. 



seedB.small lenticular, black and shining. Common in moist shady places, 

 Washington to California, 



M. rubra Howell 1. c. Whole plant usually livid red, spreading: 

 leaves deltoid or rhomboid, abruptly narrowed to a margined petiole 1-3 

 inches long: scapes 1-3 inches long, more or less depressed; involucral 

 bracts completely united (or slightly open on one side) into an orbicular 

 perfoliate disk : flowers in short sessile racemes ; sepals orbicular, less 

 than a line long, about half the kngth of the petals. In dry open woods 

 Washington to northren California. 



M. spathnlata Howell 1. c. Claytonia spathuJaia Dcugl. Succulent, and 

 glaucous or pale, scapose stems 1-8 inches long, spreading or erect: leaves 

 slender, terete or some of the outer ones becoming spatulate and flattish : 

 involucral bracts either wholly united and the disk shorter on one side, or 

 joined together on one side only and that throughout or only in part : ra- 

 cemes short, nearly or quite sessile ; the slender and mostly alternate pedi- 

 cels 3-4 lines long; Eepals ovate, a line or more long, about half the length 

 of the white or rose owor petals : seeds minutely tuberculate. In wet sa- 

 line soil, southern Oregon and California. 



M. hninifusa. Depressed and spreading in a circular manner, form- 

 ing a rosette 1-4 inches in diameter, pale green or yellowish : leaves rather 

 few,' thin, orbicular or rhombic to oblong or broadly spatulate the blade 

 2-6 lines long, abruptly or gradually contracted below to a slender petiole, 

 3^-2 inches long : scapose stems numerous, J^-2 inches long : involucral 

 bracts large, completely united on one edge and little or not at all on the 

 other, forming a broad somewhat angular reniform sessile leaf : flowers 

 glomerate in the axils of the involucre and not surpassing it ; pedicels 

 about a line long : calyx orbicular to broadly obovate, a line long, petals 

 not seen : seeds small, very black and lustrous, turgid, with a distinct 

 white appendage at the hilum. in moist places, valley of the Walla Walla 

 river near Milton, May 18, 1SQ6, Howell. This may be Clay tonia parvi- 

 flora var. depressa Gray Proc. Am. Acad, xxii, 181. 



M. tennit'olia Howell 1. c. Claytnnia tenuifoUa T. & O. Fl. i, SOI. 

 Stems numerous, filiform: leaves narrowly linear or'filiform 3^-2 inches 

 long, insensibly decumbent into long petioles : involucral bracts linear,' 

 somewhat dilated at base and then slightly connate on one side, much 

 longer than the sessile 1-bracteate subumbellate raceme : petals oblong, 

 longer than than the calyx, rose-color. In damp places about cliffs, etc., 

 southern Oregon and California. 



M. arenicola. Claytonio, arenicola Henderson Bvll. Torr. Club xxii, 

 49. "Annual with delicate fibrous roots, 2-6 inches high : radical leaves 

 linear-spatulate, the broadest not over 2}4 lines wide (generally about a 

 line wide) 1-2 inches long, tapering from neair the obtuse apex into a deli- 

 cate petiole : cauline leaves a single pair, similar to the radical but shorter, 

 opposite and distinct : racemes numerous and proliflcally flowered, the 

 flowers on pedicels >-a-% inch long ; petals ^pink-white, 3 lines long, emar- 

 ginate ; seeds % line long shining and resembling those of 0. ISiberica, but 

 only half as large. Dry sandy banks along streamy as -well as dry pine 

 woods, Idaho and eastern Washington." 



+- -t- Involucral bracts distinct ; petals subequal. 

 -* Perennial with creeping rootstocks: racemes without bractlets. 

 M. asarifolia Howell 1. c. Claytonia asarifolia Bong. Veg. Sitch. ISI 

 ^ ^^S' ''°y'W°}'^"' W^«'«on Pron. Am. Acad. :)irrii, S65. f-'capose stems 4-12 

 inches high from a creeping caudex : radical leaves subcordate or some- 

 what reniform to rhombic-ovate, on long slender pedicels: involucrate 

 leavos ovate acute,>^-l ^ inches long : flowers few upon slender pedicels in a 

 long pedunculate nakea (or with a single scarious bract) raceme : petals .S- 

 4 lines long, thrice longer than the rounded sepals. Alpine and alpestrin 

 from Alaska to California, east to the northern Rocky Mountains 



