SKETCH OF THE FLORA OF ALASKA. 455 



A. Sitcliensis-, Bong., Sitka. 



A. alba, Miclix., nortlnvostern Alaska, where, according to Seemann, it grows 

 from twenty to twenty-live feet liigli. 



Finns Cembra, L., Kotzebne sound, fide Bongard and Hooker and Arnott. 



P. contorta, Dongl., Sitka. I can liardly tliink tliis is P. inops of Ait., as is 

 alleged by some authors. 



Thuja excelsa, Bong., Sitka and southern Russian America. 



Juniperus nana, Willd., Sitka. 



SALSOLACEiE. 



Teloxys aristata, Moquin-Tandon ; Russian America, Pallas. 



Atriplex littoralis, L., Kotzebne and Norton sound. 



A. Gmelini, C. A. Meyer, Bong., Veg. Sitka, Kotzebne sound and Sitka. 



Corispermum hyssopitblium, Stev., Point Barrow to Mackenzie river, Pullen. 



Blitum capitatum, L., Fort Youkon, Rev. McDonald. 



TYPHACE^. 



Sparganium natans, L., Kotzebne sound and Ounalashka. 



Lysichiton Kamtschatcense, Schott ; Draconticum Kamtschatcense, L. ; Sym- 

 plocarpus Kamtschaticus, Bongard ; Arctiodracon Kamtschaticum, Gray on 

 the Botany of Japan, in Memoirs of American Academy of Arts and Sciences, 

 new series, vol. 2, }ip. 408-9 ; Sitka, Bischofi. I give the description and 

 some remarks on the affinities of this plant, by Professor Gray, 1. c. 



Lysichiton Schott. '' Spadix nudus, scapum terminans, cylindricus. Flores 

 herinaphroditi, Perigynium tetraphyllum, basi ovarii adnatum, phyllis ol)ovatis 

 meml)ranaceissubconcavis. Stamina, 4 ; filaraenta plana ; anthera? extrorsie, bilo- 

 culares, loculis ovalibus rima longitudinali ex apice fere ad basim dehiscentibns. 

 Ovarium biloculare, rarius abortu uniloculare ; stylus couicus, stigmate depresso 

 simplici terminatus. Ovula in loculis solitaria, disseipmento paulo supra basim 

 inscrta, horizontalia, orthotropa. Pericarpia carnosa, 1-2 sperma, in recepata- 

 culum commune spongiosum coalescentia, stylo crasso-conico acuto apiculata, 

 Semine hand visa.* — Herbse paludosse, boreali-Pacificfe, acaules; foliis niagnis 

 Symplocarpi cum scapo elongato coetaneis e rhizoraate crasso horizontal i ortis ; 

 spatha vaginante superne in limbum lanceolatum sen ellipticum coloratum 

 explanatum. 



From our skunk cabbage the new genus is distinguished by the elongated 

 scape, the membranaceous spatha or sheath, the spicilbrm spadix, the membra- 

 naceous perianth, the horizontal orthotropous ovules, and probabl}' by the nature 

 of the fruit, which I have not seen mature. I lay little stress upon the bilocular 

 ovary, because one of the cells is occasionally abortive or wanting in the Japan- 

 ese plant, and because the ovary of Symplocarpus itself not rarely exhibits ves- 

 tiges of a second cell." Gray, 1. c. 



NAIDACE^. 



Zostera mariua, L., Ounalashka. 

 Potaraogeton natans, L., Sitka. 

 P. rufescens, Besser, Ounalashka. 



* " Semen ventre planum, dorso convexum, .imbitu ellipticum. Embryo macropodus."- 

 Prodromus Systematis Aroideum, p. 420, H, G. Schott. 



