482 
TRANS. OF THE ACAD. OF SCIENCE. 
sen paueis (raro singulis) pluri-(12-20) vel multi-( 20-50) flo- 
ris fuscis; floribus paulo minoribus; sepalis interioribus bre- 
vioribus plerumque acutis, exterioribus capsulam longe mu- 
cronatam aequantibus ; seminibus ut supra.— J. xiphioides, 
Torr. Bot. Mex. Bound. 222; Gray, Pl. Hall & Harb. 1. c. 
Yar. <j. macranthus: caulibus mediis (sesqui-bipedalibus); 
vaginis in folia angustiora sensim excurrentibus; eapitulis 
paueis multi-(18-40)floris; floribus majoribus fuscis ; sepalis 
fere aequilongis, interioribus ssepe obtusiusculis capsulam acu- 
tam aequantibus; seminibus majoribus obovatis abrupte api- 
culatis.— J\ polycephalus, a. ex parte, Hook. FI. B. Am. 1. c. 
Yar. e . triandrus: caulibus humilibus seu mediis (spitha- 
meis bipedalibus) ; vaginis in folia angustiora sensim excur¬ 
rentibus ; eapitulis singulis paucisve multi-(15-30)floris seu 
pluribus pauci-(5-8)floris paniculatis; floribus majoribus atro- 
fuscis 3-andris; sepalis aequilongis seu interioribus obtusi- 
oribus subbrevioribus capsulam mucronatam aequantibus seu 
ea brevioribus; seminibus fere ut in var. a .— J, ensifolius, 
Wickstr. in Act. Holm. 1823, II. 1; Kunth, 1. c, 337. 
On the Pacific slope of the continent from southern Califor¬ 
nia to Xlnalaschka, extending eastward into the plains east of 
the Rocky Mountains. Yar. a seems peculiar to the fertile 
lands of the California coast region: Monterey, Haerike , San 
Francisco, Bolander , Kellogg , Hb. n. 93, Fort Tejon, Xantus. 
Yar. (3 has been found on Monte Diablo, near San Francisco, 
Brewer , Calif. St. Surv. 338. Yar. y , the large-headed form in 
the Rocky Mountains, from Oregon, Spalding , Lyall , to Colo¬ 
rado, Rail & Harb . 564, and N. Mexico, Fendltr , 858, Wright , 
1925, and into the plains, Saskatchawan, Drummond, and Ft. 
Riley, H. Engelmann; the small-headed form is of more south¬ 
ern origin—Arizona, Cones & Palmer, 70, N. Mexico, Wright, 
1923 in part, and west Texas, Lincecum , Yar. 6 only in Una- 
laschka , Eschscholtz, on the “North-west coast,” Douglas, 
and in the Cascade Mountains, Lyall Yar. e from Unalasch- 
ka, Eschsholtz, Chamisso, Mertens, to the Cascade Moun¬ 
tains, Lyall, and the Californian Mountains, Bolander, Hb. 
n. 94; the panicled form, San Francisco, Bolander . 
This species, the type of the group of Ensifolii, is as vari¬ 
able as any of its eastern congeners, and its extreme forms 
are as widely apart in size of stems and leaves, and of flower- 
heads, in their inflorescence and even in the number of sta¬ 
mens, and transitions between the different varieties are not 
wanting; but in flower and fruit they are remarkably uniform. 
—The flowers are 1£ lines long, rarely a little smaller, and 
only in var. d and e larger; the sepals are narrow, the outer 
ones always long-pointed, but the inner ones quite variable 
and often shorter; stamens scarcely more than half as long as 
sepals; seeds 0.23-0.26 line long and attenuate at least at the 
lower end, except in var. 6 ; their length is usually equal to 
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