TAB. XXXV. 



SCOLOPENDRIUM (CAMPTOSORUS) SlBIRICUM, Hook. 



Caudice parvo adscendente radiculoso, stipitibus caespitosis 

 gracilibus 2-4-uncias longis, frondibus membranaceis, sterili- 

 bus brevibus oblongo-ovatis acuminatis, fertilibus 5-6 

 uncialibus lanceolatis longissime caudatim attenuatis apice 

 radicantibus, venis prope costam anastomosantibus reliquis 

 liberis apicibus clavatis, soris geminatis non raro sparsis 

 solitariis. 



Scolopendrium (Camptosorus) sibiricurn, Hook. Sp. Fil. 3. 

 ined. 



Camptosorus Sibiricus t{ Buprecht in Beitr. 2, Pflanzenk. d. 

 Muss. B. III. p. 45." Ledeb. Fl. Boss. 4, p. 523. 



Hab. Siberia, River Angara, Steller ; Kamtschatka, Georgi, 

 Island of Tsus Sima, Strait of Korea, Wilford, n. 790. 



Linnteus gives '' Siberia" as a locality for the N. American 

 Asplenium (Camptosorus) rhizophyllum. The Siberian plant is 

 however since acknowledged to be a new species, distinguished 

 by the entire absence of lobes or auricles at the base of the 

 frond, which are so characteristic of the United States. But 

 even in Siberia the present species appears to be of very rare 

 occurrence, insomuch that the late learned author of the 

 Flora Rossica (Ledebour) was obliged to declare "species 

 mihi ignota." Only two stations for it have been yet re- 

 corded in all the Russian dominions ; and now that it has 

 been detected in the island of Tsus Sima, off the coast of 

 Korea, the discoverer there accompanies his specimen by the 

 remark " the only specimen found ;" and that is the one hera 

 represented. 



Camptosorus and Anttgramme only differ from Scolopen- 

 pendrium by the partial anastomosing of the veins ; in the 

 former next the costa ; in the latter next the margin. To me 

 it seems most natural to unite both with Scolopendrium. 



Fertile and barren fronds. Fig. 1 . Portion of a sterile frond, 

 showing the venation, and/. 2. portion of a fertile frond with 

 sori : magnified. 



Cent. 2. t. 35 



