. The Bryologist. Mosses; Liverworts; Lichens; Botany; Bryology. THE BRYOLOGIST Vol. XX May, 1917 No. 3 NOTES ON NORTH AMERICAN SPECIES OF RICCIA* Marshall A. Howe (with plate iii) RicciA Beyrichiana Hampe and Riccia Lescuriana Austin Riccia Beyrichiana I have discussed briefly on two former occasions,^ but will here review some of the main points in its history, even at the risk of re- peating some of the things that have elsewhere been said about it. The species was originally described in Lehmann's " Pugillus Septimus", published in Ham- burg in 1838. The name was attributed to &q
. The Bryologist. Mosses; Liverworts; Lichens; Botany; Bryology. THE BRYOLOGIST Vol. XX May, 1917 No. 3 NOTES ON NORTH AMERICAN SPECIES OF RICCIA* Marshall A. Howe (with plate iii) RicciA Beyrichiana Hampe and Riccia Lescuriana Austin Riccia Beyrichiana I have discussed briefly on two former occasions,^ but will here review some of the main points in its history, even at the risk of re- peating some of the things that have elsewhere been said about it. The species was originally described in Lehmann's " Pugillus Septimus", published in Ham- burg in 1838. The name was attributed to "Hampe Ms". It is probable, however, that the description was written by Lindenberg, whose classical mono- graph of the Ricciaceae had been published two years earlier, though Linden- berg's name appears only in the preface to Lehmann's work. The plant is said to have been collected in North America, between Jefferson and Gainesville, by a German botanical traveler, Beyrich. From what is known of Beyrich's travels it is evident that the Jefferson and Gainesville in question are in northern Georgia, where towns bearing these names are county seats about twenty miles apart. Until recent years Riccia Beyrichiana remained apparently unknown except from the original description. In some critical notes on the American species of Riccia, published by Professor Underwood in The Botanical Gazette in 1894, Riccia Beyrichiana was omitted on the ground that there was no recent evidence that it was a member of our flora. In 1898, however, Stephani, in his Species Hepaticarum^ stated that he had seen Beyrich's plant, that it was collected in Jefferson, North America, and that it is doubtless a good species. And he gives a new description of it. Three years later, in 1901, I wrote to the Naturhis- torisches Hofmuseum in Vienna, where the Lindenberg herbarium is preserved, and secured for study the pocket containing the apparent type of the species. I then published some notes on it, e
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