190 DR. W. JAMESON ON THE INK-PLANT OF NEW GRANADA. 
indistinetly the tristichous arrangement sufficiently evident in the 
sterile. 
This genus occupies a place in the group of Mosses which cor- 
respond in areolation and fructification with Bryum, and con- 
stitute the tribe Bryacee; it is closely allied to Webera, with 
whieh its fruit agrees; but it differs from all other genera yet 
known to belong to that group in the same manner as Calomnion 
does from Hymenodon and other Mniacee. If the arrangement 
of the leaves alone was a sufficient character to form a genus, 
Anisostichium Tozeri would exactly correspond with Calomnion ; 
but the areolation of the latter is composed of rounded hexagonal 
cells, and is precisely that of Rhizogonium, which so closely simu- 
lates the forms of Mnium, that they must all be referred to the 
same natural group—Mniacee. The analogy of form is carried 
still further in Mniopsis, which has barren and fertile stems with 
their leaves disposed as in corresponding stems of Schistostega ; 
but the areolation is distinctly Mnioid, whilst Schistostega has 
the areolation observable in Anisostichium and Webera, and thus is 
more nearly allied to them, and belongs to the Bryacee,—there 
being no connecting link between it and the Splachnacec, to which 
Schimper, although instituting for its reception his family Schisto- 
stegec, is inclined to refer it. 
, On the Tnk-plant Wi ew Granada (Coriaria thymifolia). By Dr. 
WILLIAM JAMESØN, of Quito; in a Letter to I. A. Henry, 
Esq. (Communicated by J. D. Hooxer, M.D., F.R. & L.S.) 
[ Read June 18, 1863.] 
* Quito, April 11, 1863. 
* [ AM anxious to have Dr. Hooker's opinion of the ‘ Ink-plant.’ 
There is a tradition here respecting this vegetable juice that 
merits attention. It happened, during the Spanish Administra- 
tion, that a number of written documents, destined to the mother 
country, were embarked in a vessel, and transmitted round the 
Cape. The voyage was unusually tempestuous, and the docu- 
ments got wetted with salt water. Those written with common 
ink became nearly illegible, whereas those written with * Chauchi’ 
(the name of the juice) remained unaltered. A decree was there- 
upon issued that the Government communications should in future 
be written with the vegetable juice....I do not vouch for the cor- 
rectness of this statement, but I have constantly heard it repeated 
from different sources. I generally use this ink in preference to 
