446 
TRANS. OF THE ACAD. OF SCIENCE. 
soft, compressible stems are 8-17 inches high, and always, as 
far as I have seen, leafless; and when Meyer (FI. Ross. 1. c.) 
says that they Occasionally bear leaves, he had probably one 
of the allied leaf-bearing species before him, which are, at first 
glance, so much like our plant that they have been almost 
constantly confounded with it. The spathe is i-l$ inches 
long and usually exceeds the flowers; in the variety it meas¬ 
ures only 2 or 3 lines and is shorter than the flowers, of which 
the primary one is sessile and the accessory one peduneled, 
just as we see it in J. biglumis. Flowers 3 lines or more 
long; sepals green on the back, brown on the sides, pale and 
membranaceous on the margins; outer ones with 5-7 nerves; 
stamens less than ohe-half, often only one-third as long as the 
sepals; capsule deep chestnut-brown and shining; seeds 0.3 
line, or including the tails, about 1 line long; appendages as 
long as, or longer than, the body of the seed, which is deli¬ 
cately striate, with 10 or 12 ribs visible (on one side), and 
distinctly cross-lined; it is one of the very few species in 
which we find the appendages as long as, or longer than, the 
seed itself, 
14. J. Hallii, n. sp.: caespitosus; caulibus (spithameis pe- 
dalibus) teretibus filiformibus folia teretia setacea longe 
Superantibus; spatha paniculam subsimplicem paucifloram 
coarctatarn vix seu parum superante; sepalis lanceolatis 
acutis, exterioribus pauld longioribus stamina 6 bis superanti¬ 
bus ; antheris linearibus filamento paulo brevioribus; stigma- 
tibus subsessilibus ovarium ovatum aequantibus inclusis ; cap- 
sula ovata angulata retusa triloculari vix exserta; seminibus 
oblongo-linearibus striato-reticulatis longe caudatis.— J. arc - 
ticusj var. gracilis? Gray in PI. Hall & Harb. 1. e. p. 77, ex 
parte. 
Near Lake Ranch, Colorado, Hall & Harbour , Rocky 
Mountain Flora, No. 562 ; for the former of whom, Mr. E. 
Hall, of Athens, Menard county, Ill., who discovered this and 
many other plants in that region, it is named. It seems to 
be a rare plant, as neither Dr. Parry nor any one else, so far 
as I know, has obtained it.—Stems very slender, 6-12 inches 
high; leaves from 2-5 inches long, grooved just above the 
vaginal part, terete upwards; spathe as long as, or a little 
longer than, the compact inflorescence, which consists of 2-5 
flowers about 2 lines long; capsule deep brown, as long as, 
or longer than, the acute but not subulate-pointed, chestnut- 
brown, white-margined sepals; seeds 0.5-0.6 line long, the 
body of the seed being about 0.3 line long, and the appenda¬ 
ges half as long as the body, or often shorter; I notice on one 
side of the seed about 10 delicate ribs. 
15. J.PARRYi,n. sp.: csBspitosus; caulibus setaceis humilibus 
(digitalibus spithameis) folia sulcata sursum teretia superanti- 
