156 Rhodora [AvGvusT 
R198B497; wet places and damp cliffs near Bingen, Klickitat Co., 
Suksdorf 3817, 6221 & 6231. 
Dropping Arkansas from the range of this species requires a word 
of explanation. In his first paper on the Juncus tenuis allies (Bull. 
Torr. Bot. Club, xxvii. (1900) p. 520), Wiegand cited the three speci- 
mens from which he drew up the original description of Juncus brachy- 
phyllus as follows: — 
"Arkansas: (Between Morka and Red Fork) (Marcy's Exped. 
Herb. G. Thurber); Upper Platte (Hayden in Gray Herb. 
type. 
tate” Lake Waha) (Heller, no. 3410, 1896).” 
Both of the specimens said to be from Arkansas are in the Gray 
Herbarium. ‘The original label of the former reads, “Between Moska 
and red fork Ark. June-Sept. 1849." A supplementary label, 
dating from the time that the Thurber collection was incorporated 
with the Gray Herbarium, ascribes the specimen to “ Marcy's Expedi- 
tion." When the itinerary of the Marcy Expedition of 1849 was looked 
up (The Report of Capt. R. B. Marcy's Route from Fort Smith 
to Santa Fe, 31st Congress, Ist Session [Senate] Ex. Doc. no. 64 
(1850) p. 169), it was found that the expedition, which started from 
Fort Smith on the fifth of April, arrived at Santa Fe, New Mexico, 
on the twenty-eighth of June and that the return trip to Fort Smith 
was begun about the twenty-fifth of August. The line of march on 
the return was southward to Dona Ana on the Rio Grande, and from 
there in general eastward and southeastward, until, eight days after 
crossing the Pecos River, they “pushed out upon the high plain of 
the Llano Estacado." This was on the twenty-ninth of September. 
On October sixth they “struck into a creek bottom, followed it down 
about three miles to its junction with a large stream, which is the main 
Red Fork of the Colorado.....'l'he main Rio Colorado has, near its 
head, two principal tributaries — the Concho and the Red Fork." 
There can be no doubt that this is the Red Fork of the Marcy label. 
It remains to identify his “Moska.” The name is not mentioned in 
his report nor is it on his map. So far as there is any evidence, how- 
ever, it seems to have been the name of his camp near Santa Fe, for 
on U. S. Land Office maps of later date a tract about ten miles north- 
east of Santa Fe is called “Sierra Mosca."  'l'his was afterwards the 
site of Fort Marcy. It would seem likely, from the montane and 
northern distribution of Juncus brachyphyllus, that the Marcy speci- 
