MICROCALA GENTIANACE 443 
ERYTHR#HA 
M. quadrangularis Griseb. DC. Prodr. ix, 63. Stem filiform, simple 
or branched, 2-3 inches high: leaves 2-3 pairs, oval or oblong, 2-3 lines 
long: flowers solitary at the summit of the stem or branches: calyx at 
first oblong-campanulate, in fruit broader, truncate at top and bottom, 
strongly 4-angled; the teeth short and subulate: corolla saffron-yellow, 
3 lines long: capsule ovoid. In prairies, Umpqua Valley Oregon to Calif. 
2 ERYTHREZA Neck. Elem. ii, 10. 
Low herbs with sessile entire leaves, and small or middle sized 
commonly numerous pink white or yellow flowers in cymes or 
spikes. Flowers 5-merous, sometimes 4-merous. Corolla sal- 
verform with either a short or rather long tube; the lobes often 
contorted and becoming narrower with age. Filaments slender. 
Anthers oblong or linear, commonly exserted, twisting spirally 
in one or two turns after opening. Style filiform : stigma 2-lobed, 
the lobes from oblong to fan-shaped. Ovary 1-celled: the pla- 
centz more or less intruded. Capsule from oblong-ovoid to 
fusiform, 2-valved. 
E. Muhlenbergii Griseb. DC. Prodr. ix, 60. ‘‘ A span or less high, 
at length fastigiately branched from the base, cymosely flowered at sum- 
mit: leaves oblong, obtuse; the floral lanceolate: pedicels short or hardly 
any in the forks; the lateral often as long as tbe flower, but 2-bracteolate at 
summit: lobes of the rose-red corolla oval, very obtuse or retuse, in age 
merely oblong, 2 or almost 3 lines long, much shorter than the tube: 
anthers oblong: seeds short-oval. ’’ Western Oregon and California. 
E. Douglasii- Gray Bot. Cal. i, 480. Stem slender, 6-12 inches high, 
loosely and paniculately branched usually sparsely flowered: leaves from 
oblong to linear, mostly acute: flowers all on strict and slender peduncles 
or pedicels: lobes of the pink corolla ob'ong, obtuse, at most 3 lines long, 
mostly half the length of the tube: anthers oblong: stigma fan-shaped : seeds 
globular. In moist places, Oregon and California to Utah and Wyoming. 
E. Nuttallii Watson Bot. King 276, t, 29. Stem erect, loosely bran- 
ched, 3-12 inches high: leaves Jinear-oblong, 6-12 lines long, acute: pan- 
icle dichotomous, few-flowered: flowers on elongated slender peduncles: 
lobes of the pink corolla elliptic-oblong, 2-3 lines long, acute: stigma 
somewhat cup-shaped, slightly 2-lobed: capsule 4-7 lines long, becoming 
peat twice the length of the calyx: seeds oblong. Nevada to Idaho and 
tah. 
E. minima. Stem filiform, simple or sparingly branched, 1-2 inches 
high: leaves lanceolate, acute, 1-3 lines long: flowers racemosely disposed, 
all pedicellate : lobes of the pink or white corolla lanceolate, acute, 2 lives 
long, more than half as long as the tube: anthers oblong: lobes of the style 
fan-shaped seeds globular, strongly pitted. In wet places, throughout 
western Oregon. 
E. curvistamenea Wittrock. Stem slender 2-4 inches high, simple 
or sparingly branched: leaves oblong-lanceolate or the upper ones linear, 
acute: flowers on long slender pedicels: lobes of the light red corolla linear- 
lanceolate, 2 lines long, half as long as the tube: summit of the filaments 
curved downward with the anthers in a tangled mass about the stigma: 
seeds not seen. Lincoln County Washington. 
3 GENTIANA Tourn. L. Gen. n. 322. 
Erect herbs with chiefly sessile opposite leaves and conspicu- 
ous flowers that usually open only insunshine. Calyx common- 
