106 GERANIACE^E. GERANIUM. 



inches to a foot long, the herbage softly and somewhat clammily villous : 

 leaves an inch broad or more, cleft into oblong obtusish lobes: sepals ovate- 

 oblong, not a\vn-pointed : petals very small, rose-color : carpels glabrous, 

 transversely rugose : seeds minutely striate. Plentiful northward, from 

 northwestern California to Brit. Columbia. 



*----- Sepals not awned : carpels rugone, not hairy, at maturity 

 remaining on the axis, not borne on the recurved style. 



G. PUSILLUM L. Sp. ed. 2, 957. ftoft-pubescent or the pedicels and 

 calyx villous and usually glandular : stems slender or ascending, 3-6 inches 

 long: lower leaves orbicular an inch or less in diameter equally cleft into 

 7-9 linear or oblong lobes, each more or less regularly 3- toothed at the 

 apex; cauline round- reniform, 5-7-parted,' the ^divisions cleft into linear 

 lobes : peduncles often in the axils of bracts opposite the leaves, short : 

 sepals ovate, acute or acuminate not awned : petals pale purple, about 

 equalling the calyx, usually only 5 of the filaments antheriferous : carpels 

 fine canescent, keeled, not wrinkled : seeds smooth. Common in open 

 places thi:OTi<rhout the Willamette valley; introduced from Europe. 



* * Perennials: flowers large : stems naked below, dichotomously 

 branched with opposite leaves above : sepals shortly aristate, scarious 

 on one side, the scarious portion often extending lobe-like beyond the 

 apex : filaments and petals pilose at base. 



G. Fremont! Torr, in Gray PI. Fendl. 26. Rather stoat, more or less 

 pubescent throughout with a close glandular pubescence, sparsely inter- 

 mixed with longer pilose hairs: radical leaves 7-cleft, the segments 3-lobed 

 or incised; cauline 3-5 cleft, the divisions 3-lobed : petals obovate twice 

 the length of the sepals : villous at base. Dry open hillsides, Idaho to the 

 Rocky Mountains. 



G. Richardson! F. & M. Ind. Sem. Petr. iv, 37. Erect with slender 

 branches l%-3 feet high : pubescence usually fine and appressed : leaves 

 deeply 5-7-cleft, lobes sharply incised : pedicels and sepals glandular pilose : 

 petals entire, hirsute at base. In the mountains from Brit. Am. to New 

 Mexico and westward, perhaps on our eastern border. 



G. incisum Nutt. T. & G. Fl. i, 206. Densely pilose with short white 

 spreading or deflexed hairs to nearly glabrate : stems stout, numerous 

 from the crown of a large somewhat woody perennial root, 1-3 feet high, 

 dichotomously branched above with a long 2-flowered peduncle or branch 

 in the forks or at length a pair of opposite sessile leaves, with a peduncle 

 in the axil of each, appearing compact and many-flowered: lower leaves very 

 long petioled, ample, round-reniform in outline, primarily deeply 3-lobed 

 or-parted, the broad cuneiform lateral segments deeply 2-lobed, 'the oblong 

 lobes coarsely incised and serrate ; the upper ones similar but very short 

 petioled or sessile :flowers purple, on slender pedicels >-2 inches long, 

 somewhat abruptly contracted above to the rather stout awn, outer one 

 somewhat pubescent and more or less glandulap-ciliate ; inner ones min- 

 utely pubescent, with rather broad scarious margins ; petals broadly obo- 

 vate 6-8 lines long, more or less retuse, conspicuously veined, densely 

 bearded at base; filaments about equalling the style, dilated and ciliate at 

 base ; styles minutely hispid, the free tips 1-2 lines long and spreading or 

 recurved. Along small streams, eastern Oregon and Washington to Brit. 

 Columbia and Dakota. 



G. Oreganum. Pilose with short white deflexed hairs or that of the 

 pedicels spreading and gland-tipped, stems several from the crown of a 

 thick perennial root, erect, 1-2 feet high comparatively slender with long 

 internodes, dichotomously branched : leaves all rather long petioled, deeply 

 5-7-cleft, the cuneate segments irregularly incised and toothed : flowers 

 bright purple on long slender ascending peduncles thus appearing loosely 

 flowered, pedicels 1-2 inches long slender: sepals oblong-ovate, outer one 



