LILY FAMILY 303 



IiiDer perianth-segmoiits witlioiit auricles or scales; flowers solitary or racemose 



1. E. purpurascetts. 

 Inner perianth-segrincnts with auricles and a median pair of sacs, each joined laterally to the 

 auricle by a narrow riilge or saccate process. 

 Scape bearing a solitary flower or when several the pedicels often very long or unequal. 



Flowers purple; pedicels oft^n very unequal, half to as long as the scape 



2. E. hendcrsonii. 

 Flowers mostly cream, yellow or pink. 



Filaments filiform or very narrowly dilated. 



Style and stigma entire 3. E. citrinum. 



Style 3 eleft or 3-lobed at apex. 



Leaves bright solid green 4. E. grandiilorum. 



Leaves strongly mottled 5. E. culifornicum. 



Filaments ovately scarious-winged 6. E. revolutum. 



Scape none, the flowers 1 to 5 in an umbel sessile bet;ween the leaves, each flower thus raised 

 on a scape-like pedicel 7. E. hartwegii. 



1. E. purpurascens Wats. Tliree to 6 (or 16) inches high, the scape hearing 

 1 to 8 flowers in a raceme, the flowers commonly approximate, rarely with very 

 nneqnal pedicels and nmhellate : leaves not mottled, undulate-margined, dark 

 metallic green ; flowers light yellow, tinged purple after a few days, the linear 

 segments 7 to 8 lines long, only slightly recurved ; filaments filiform ; style clavate, 

 shorter than the stamens, its stigma obscurely lobed. 



Sierra Nevada, Mt. Lassen to Tulare Co., brushy or forested slopes, 4000 to 

 8000 feet. Rare south of Plumas Co. June-July. 



Loes. — Hot Springs Valley near Lassen Peak, Jepson 4079 (lower part of petals sulphur 

 yellow, the upper part pure white and fading pink); Big Mdws., Plumas Co., E. M. Austin; 

 Cisco, ace. Purdy; Mt. Moses, Purpns. 



Befs. — Erythronium purpurascens Wats. Proc. Am. Acad. 12:277 (1877). E. ffraiidi- 

 florum var. muUiflorum Torr. Pac. R. Rep. 4:146 (1857), type loc. Downieville, Bigelcjw. 

 E. purjtura-iicens var. uniflor-iim Wats. Bot. Cal. 2:171 (I88O), resting on E. grandiflorum Torr. 

 Pac. R. Rep. 4:14.5 (1857), type loc. Forest City near Downieville, Bigelow. 



2. E. hendersonii Wats. Seven to 12 inches high, 1-flowered or with 2 to 4 

 flowers on pedicels half to as long as the scape ; leaves mottled, long-oblong, obtu.se 

 or obtusish, or tapering from the middle upward; perianth jiurple, the segments 

 very revohite, IX'x to l-'^Cj inches long, the base of segments with a median pair 

 of inflated or bulbous sacs, each connected with the auricles by a small sac or 

 papilla; stigma 3-lobed. 



Siskiyou Co. North to southwestern Oregon. 

 Locs. — Quartz A'alley, Butler. Grants Pass, Ore., M. S. Baler. 



Ref. — Erythronium hendersonii Wats. Proc. Am. Acad. 22:479 (1887), based on Oregon 

 spms. (Ashland, Henderson, and Grants Pass, Sowell). 



3. E. citrinum Wats. Scape 1 to 3-flowered, .'5 to 11 inches high ; leaves 

 "mottled," but not obviously so in our material, oblong, obtuse or acute, more 

 or less undulate, 3 to 6 or 10 inches long; flowers lemon-yellow, the oblong acumi- 

 nate segments 1 to l^/^ inches long ; inner perianth-segments bearing at ba.se a 

 median pair of saccate protuberances, each joined laterally by a smaller sac or 

 process to the auricle ; style clavate at apex ; style and stigma cpiite entire. 



Open pine woods, central Sierra Nevada and southw-estern Oregon. Apr. 



Tax. Note. — Watson describes the appendages as "scales," but in dried specimens these 

 ' ' scales ' ' of the delicate perianth-segments are portions of the formerly open sacs flattened b.v 

 pressure. 



Locs. — Italian Bar, Tuolumne Co., Fred Grant; Yankee Hill, Jepson 6407. 



Ref. — Erythronium citrinum Wats. Proc. Am. Acad. 22:480 (1887), type loc. Deer Creek 

 Mts., Josephine Co., Ore., Howell. 



4. E. grandiflorum Pursh var. parviflorum Wats. Scape 1 to 2 or 5-flowered ; 



leaves bright green, without spot.s ; flowers egg-yellow, at higher altitudes lemon- 

 yellow; inner perianth-segments anrieled and with 4 e(|ual sacs at base, the sacs 

 ridged, \\Tinkled or flattened and not very distinct from each other; style 3-eleft 

 at apex or merely 3-lobed. 



