Macbride — North American Spermatophytes 55 
b. Anthers 1 mm. or less than 1 mm. long, scarcely exserted 
from the corolla-throat; corolla pale blue, the narrow 
lobes much nc er than the tube 
c. Stems erect fro 
Flowers c sista ghar TMU ie Fate bg 2. G. filifolia. 
Flowers solitary or 2-3 ina head........... 2a. var. Tita 3 sie 
o. — ep eho at base, branched... «2.56. 6.05.5 2b. var. d iffusa. 
b. Anthers 1.3-2 mm. long, exserted from the corolla- 
Soca, usually distinotly. so; corolla pale or dark 
blue or yellow, the lobes at least one half as long as 
etube d. 
d. Corolla, * least the throat and lobes, blue; ovules 
m if ever solitary in the cells e. 
e. pawl pores or some 3-parted; heads at least 
ae vg nearly glabrous to densely 
2 infloresvence involved in dense wool; flowers 
in capitate-glomerules. 
Stems simple, virgate or with a few short 
branches; corolla dark blue, the lobes 
about one half as long as the tube...... 3. G. virgata. 
Stems Se much branched; corolla usually 
the lobes often about as ong as 
Pye EPs liein ces pele were. 3a. var. floccosa. 
J. Inflorescence sublanate to nearly glabrous; 
rs, at least some of them, scattered or 
aS dusters OG oo ee ee & 3b. var. sapphirina, 
é. hota. hone 3-7-pinnatifid; heads man 
. hehe aa anate; plants corymbosely 
hed oe ce eo nee “A G. dtl 
d. Corolla velluie; ovules 1-2 in the cells............ ae 
1.. G. penstroutiA Benth. in DC. Prod. ix. 311 (1845). — 
SouTHERN CaLiFoRNIA: Kernville, April-Sept., 1897, Purpus, 
no. 5506; Mt. Pinos, July, 1875, Rothrock, no. 204; 1833, Douglas; 
near Seven Oaks, San Bernardino Mts., June 25, 1895, Parish, no. 
3685. 
a. var. ELONGATA (Benth.) Gray ex Brand, Pflanzenreich iv. 
950. 165 (1907). Navarretia densifolia (Benth.) Brand, subsp. 
elongata (Benth.) Brand, |. c. — Southern we to adjacent 
Nevada, Arizona and Lower California.—Nevapa: _ 1871, 
3 
no. 232; San Bernardino, Aug. 1881, S. B. & W. F. Parish, nos. 
314, 315; Mt. San Antonio, San Bernardino Co., mu al. 1902, 
Abrams, no. 2682; Los Angele s Co., July 24, 1908, Abrams & 
M cGregor, no. 554; Palmdale, Mohave Desert, June 31, 1908, 
Abrams & McGregor, (cited by Brand as N. avarretia virgata, var. 
1 n 
1909 and Oct. 13, 1910, Parish, no. 7139. (The last four numbers 
represent the large-flowered var. sanctora Milliken). Lowrr 
