Ni aioe eee, ii 
RYDBERG: STUDIES ON THE RocKy MounTAIN FLORA 315 
margined; petals about 5 mm. long; capsule about 6 mm. long, 
slightly curved near the upper end. 
This is Cerastium arvense fuegianum Hollick & Britton, but not 
that of Hooker. It differs from C. strictum L., its nearest relative, 
in the low, depressed stem, yellowish herbage, thicker and smaller 
leaves, the lower of which are often obtuse, and the smaller more 
condensed flowers. It grows on geyser formations in the Yellow- 
stone National Park, at an altitude of about 2,000 m. 
Wyominc: Lower Geyser Basin, Aug. 4, 1897, Rydberg & 
Bessey 4025 (type, in herb. N. Y. Bot. Garden); Aug. 11, 1872, 
J. M. Coulter. 
Alsine Palmeri sp. nov. 
A cespitose perennial: stems several, spreading, 5 cm. high or 
less, glabrous; leaves ovate or ovate-lanceolate, 2-5 mm. long, 
fleshy, acute; cyme 3~7-flowered; bracts lanceolate, green; sepals 
a 2.5-3 mm. long, acute; petals about equalling the 
Sepals, 
The type was named Stellaria borealis by Dr. Watson but is 
evidently not closely related to it. A. Palmeri has the thick leaves 
of A. Edwardsii (R. Br.) Rydb., but the midribs are not prominent, 
the flowers smaller, the sepals decidedly acute, and the petals only 
about equalling the sepals in length. 
TAH: Beaver Valley, 1877, E. Palmer 54 (type, in herb. 
Columbia University). 
“ Alsine alpestris (Fries) Rydb. comb. nov. 
Stellaria alpestris Fries, Mant. 1: 10. 1832. 
“Alsine strictiflora Rydb. nom. nov. 
Stellaria stricta Richards. Frankl. Jour. ed. 2. App. 15. 1823. 
Not Alsine stricta Wahlenb. 1812. 
This is the Stellaria longipes of most western reports and of 
Coulter & Nelson’s New Manual. It has a short pod and acute 
“Pals, while the original Stellaria longipes Goldie has the pods 
twice as long as the obtuse sepals. If I am not mistaken the-latter 
* the same as Stellaria valida Goodding. 
p a “Alsine subvestita (Greene) Rydb. comb. nov. 
tellaris Subvestita Greene, Ottawa Nat. 15: 42. 1901. 
