183 
and P. aulacophyllus Kr. Scb. Of tliese species P. pamiricus comes 
nearest to P. juncifolius (cfr. Verh. d. k. k. zool.-bot. Gesellsck. 
in Wien, B. XLY, 1895), but differs from it by tke broader sheatlis 
(by which it comes near to P. vaginatus), and muck larger ligules, 
t 
unbranched stems, apparently lateral peduncles and by tke wkole 
stouter structure. 
P. pamiricus kas only been found once before in Kuenluen 
at the source of the river Hoangho 1894 by W. J. Raborowsky 
(St. Petersburg kerbarium for Central-Asia, N. 411). — Tke two 
localities are not far from eack otker, and under tke same 
nortkern latitude (35°). — It seems to be endemic for Central- 
Asia. 
11. P. sp. y ad forma P. filiformis. 
N. 1143. Pamir, in tke lake Bulung Kul, deptk 1—2 m . Alt. 3800“ 
Aug. 21. 1898. 
II. Zannichellia Mickeli (det. O. Hagstrom). 
12. Z. pedicellata Fr. 
N. 217. Buckara, in ponds. May 15. 1898. 
N. 225. Buckara, in running water. May 16. 1898. 
N. 1116. Pamir, in tke lake Jaskil Kul, deptk 1—2“ Alt. 3800“ 
Aug. 15. 1898. 
N. 1962. Ckiwa, in a stream. July 2. 1898. 
— — forma gracilis. 
N. 224 a. Buckara, in a saline pond. May 16. 1898. 
III. Ruppia L. (det. O. Hagstrom). 
13. R. rostellata Kock. 
N.224b. Buckara, in a saline pond. May 16. 1898. 
