NOTES AND OBSERVATIONS. 169 
3. PARMELIA MOLLIUSCULA, ACH. 
This species* was described by Acharius from specimens 
collected by Thunberg at the Cape of Good Hope. Ny- 
Jander has reported it from Peru. According to Tucker- 
man the specimens of Borrera camtschadalis (in Herh. 
Sprengel.) from Soongaria, Parmelia congruens (in Herb. 
_ Floerk.) collected by Tilesius in Kamtschatka, and Par- 
melia vagans, Nyl. (in Herb. Krempelhiiber.) from the 
Steppes of the Volga in Russia, belong to this species. It 
is found plentifully on sterile calcareous or sandy soils 
from the Badlands of the Dakotas and Nebraska to the 
Rocky Mountains. It has then a very wide distribution, 
having been found in Europe, Asia, Africa, and North and 
South America. In spite of the fact that it has been col- 
lected in so many localities, it has heretofore been reported 
as ‘* always sterile.’’ 
The original description of Acharius in his Licheno- 
graphia Universalis, p. 492, 1810, is as follows: — 
Thallo substellato molliusculo sordide albido-virescente subpul- 
verulento, subtus concolori, laciniis imbricatis convexiusculis lineari- . 
multifidis ad apices subtus subcanaliculatis. 
Habitat ad terram juxta Promontor. bonae sp. Africae. 
Obs. Thallus vix stellatus nudus aut pulvereconcolori adspersus. La- 
ciniae crassiusculae moliiores, substantia corticali facile tamen fragibili, 
lineares pinnatifidae digitato-palmatae, ad apices subtus planae vel 
canaliculatae ibidemque fibrillis quibusdam obsitae. Apothecia non vidi. 
In Observations on N. A. Lichens, Proc. Amer. Acad., 
Vol. IV, p. 383, 1860, Tuckerman described a lichen, col- 
lected by Hayden and others on the western plains,under the 
-name of Parmelia chlorochroa. He gave it the following 
description : — 
* Acharius, Lich. Universalis, p. 492, 1810; Nylander, Syn. I, p. 393; 
Tuckerman, Syn. N. Amer. Lich. I, p. 64.— Parmelia chlorochroa, Tucker- 
man, Obs. Lich., Proc. Amer. Acad., Vol. IV, p. 383. 
