2 
(1816), as any one may see by comparing the figures, and which 
I have verified by seeing his specimens from the Boissier Her- 
barium. Not only are the capsules not strangulate, but they 
belong to the other section of the group of those with immersed 
stomata, to the rock species to which Beauvois compared them, 
those with a simple peristome, without cilia, teeth single, striolate, 
and erect when dry. It seems probable, then, that the types of 
O. strangulatum are not the specimens in the Boissier Herbarium, 
but must be looked for in the Delessert Herbarium, where I 
understand that Palisot de Beauvois’ specimens are preserved. 
ORTHOTRICHUM STRANGULATUM Schwegr. Suppl. 1: il. 33, 4 54 
(1816). : 
The specimens used by Schwegrichen to figure for his Sup- 
plement were received by me from the Boissier Herbarium, 
November 24, 1893. The label reads Orthotrichum strangulatum, 
‘ Muhlbg. b. b. a Palisot s. n. 
The specimens are abundant and in fine condition. The two 
upper ones on the right are marked b. b., and are the ones re- _ 
ferred to in the label as having been sent to him by Palisot de 
Beauvois. In two little packets are preserved the peristome, bracts 
and leaves which were used in making the drawings for 7 54, and 
are correctly represented in the figures, excepting that the teeth 
are drawn with too many joints, the originals having only 6-8 
segments, the three upper being longer than broad, papillose and — 
_ striolate. In one capsule, from which the lid had just fallen, the © 
teeth were united by a hyaline membrane, forming rudimentary | 
cilia. The teeth are set deep, with an annulus of two rows of — 
thin cells projecting above the rim of the capsule, which is also — 
bordered by three or four rows of darker brown and denser cells. © 
The preperistome, if present, is very difficult to see, though I did ) 
not care to examine but one capsule in searching for it. The — 
ridges are broad, of 4-5 rows of cells, with broad spaces between ~ 
them, and occasionally traces of narrower ridges with colored cells 
between them. The stomata are immersed, in two rows between 
the base of the spore-sac and the mouth, they are closed. 
The leaves are 2-3 mm. long, the perichztial the longer, with — 
_ a prominent vein ending below the apex, the upper cells large, : 
