16 2 CALIFORNIA. [Musci. 



deflexa laciniis ovatis obtusis subtus flavo-farinosis. Kaulf. Enum. Fil. p. 73. Hook, et Grev. 

 Ic. Fil. t. 315. 



This has likewise been gathered by Mr. Douglas, on the elevated grounds between the " Grand Rapids" 

 and the " Kettle Falls" of the Columbia, and upon Mount Hood to the South of that River. 



1. Aspidium munitum ; frondibus pinnatis, pinnis lineari-lanceolatis spinoso-acuminatis 

 subfalcatis basi sursum auriculatis mucronato-serratis, serraturis subappressis rarissime 

 bidentatis, stipite rachique subtus et basin versus paleaceis, soris solitariis. — Kaulf. Enum. 

 Fil. p. 230. 



This belongs to that division of the genus with orbicular and peltate involucres, and to the same groupe 

 with A. auriculatum, from which it is readily distinguished by the above characters. Mr. Menzies gathered 

 it in the Voyage with Vancouver, and Mr. Douglas and Dr. Scouler about the mouth of the Columbia. 



2. Aspidium argutum ; frondibus bipinnatis, pinnulis oblongis obtusis apice mucronato- 

 serratis, inferioribus longioribus pinnatifidis laciniis mucronato-serratis, stipite rachibusque 

 paleaceis, soris subcostalibus, involucris rotundato-reniformibus sinu profundo. — Kaulf. 

 Enum. Fil. p. 242. 



The excellent Kaulfuss compares the fronds and pinnules of this plant to Aspidium Filix mas., but to us 

 they appear rather to approach those of Asplenium Filix fcemina, from which, however, the fructifications 

 abundantly distinguish it. 



1. Woodwardia radicans; frondibus pinnatis, pinnis profunde pinnatifidis laciniis oblongo- 

 acuminatis subfalcatis subrepandis argute serrulatis. — Willd. Sp. PL v. 5. p. 418. Kaulf. 

 Enum. Fil. p. ] 62. 



This had been previously observed by Chamisso to be a native of California. 



1. Azolla microphylla; frondibus orbiculatis semipinnatis pinnis trilobis, foliolis imbricatis 

 adpressis minutis. Kaulf. Enum. Fil. p. 273. 



Kaulfuss has well observed that the species of Azolla are very difficult to be distinguished in a dry state. 

 Whether the present ought to be separated or not from the A. Magellanica, it is certain that it is the plant 

 of Kaulfuss now quoted, whose specimens were gathered in California by Chamisso. 



Ord. LIII. MUSCI. Juss. 

 1. Neckera Californica; caulibus caespitosis crectis pinnatis, pinnis brevibus patentibus, 

 folns subpatulis undique dispositis ovatis breviter acuminatis integerrimis basi obscure uni- 

 nervibus marginibus recurvis, setis brevibus perichaetio inclusis, capsula erectiuscula elliptica, 

 operculo rostrato. 



Caules digitales, erecti, CEespitosi, pinnati, undique foliosi; pinnis brevibus horizontaliter patentibus. 

 Folia undique divergentia, erecto-patentia, nitida, membranacea, ovata seu oblongo-ovata breviter acuminata, 

 modice concava, oranino integerrima, basi obscure uninervia, margine recurva. Substantia minutissime 

 reticulata, oculo armato quasi punctulata. Perichailialia 6-7, arete imbricata, convoluta, inferiora ovata 

 acuminata, superiora elongata, acuminatissima ; omnia enervia, pellucida. Seta laterales perichanio fere 

 omnino inclusa;, duas fere lineas longse. Capsulm exsertse, erectse, vel obliquse, elliptic*, rufofusca. 

 Operculum rostratum, basi conicum. Calyptra gracilis, fere subulata, hinc longitudinaliter fissa. Peristo- 

 mium externum e dentibus l(i, subulatis, luteis, articulatis : int. e ciliis 8, filiformibus, flavis, cum dentibus 

 alternantibus, basi membrana reticulata brevissima unitis. 



