70 The Botanical Gazette. [February, 
39. MARCHANTIA PAPILLATA Raddi. 
Martinique. 
40. MARCHANTIA THOLOPHORA Bisch. 
Cordoba, Mexico, Farlow! 
The transfer of the name Asterella to Fimbriarta has al- 
ready been stated above. Itis only worth noting that Raddis 
name, originally Redouillia, was amended by Nees in 1846 
to its correct form Redoulia; the only species is 
41. REBOULIA HEMISPHARICA (L.) Raddi. 
Asterella hemispherica Pal. de Beauv. 
Widely distributed from Massachusetts and Ohio westward 
to British Columbia and southward to Mexico. We have spect- 
mens from Massachusetts, New York, New Jersey, Virginia, 
Georgia, Ohio, Indiana, Illinois, Wisconsin, Minnesota, Brit- 
ish Columbia, Nebraska, Missouri, Arkansas, Louisiana, 
Texas, New Mexico, Arizona, California, and Lower Califor- 
ia 
In Die natiirlichen Pflanzenfamilien, Schiffner throws 
doubt upon the occurrence of Sau¢eria in America. The so}- 
itary specimen of our only species of this genus (a sterile one) 
was carefully reviewed, as the determination of sterile material 
has been found to be rather uncertain. This examination re- 
veals the undoubted thallus structure of Sauteria, together 
with the peculiar stellate stomata which are caused by the 
thickening of the radial walls of the cells bounding the stoma. 
The air cavities in the shoot are also different from any other 
of our genera; they are large and deep and extend in a f@- 
diating series from the midrib outward. The original spect 
men is, I suppose, in the Austin collection. So far as I know 
it has been collected but once since. 
42. SAUTERIA LIMBATA Aust. 
Tulare Co., California, Coville. : 
The next genus shares with Warchantia the honor of being 
the only ones recognized in Linnaeus’ Species Plantarum. 
43. TARGIONIA HYPOPHYLLA L : 
Vancouver Island, Macoun,; California throughout, Par ish, 
McClatchie, Coville, Howe, Underwood. 
Two other species are found in Mexico: 
44, ARGOS CONVOLUTA L. et G. 
ajaca. 
45. TARGIONIA MEXICANA L. et G. 
Jalapa. 
