ON CAL1FOKNIAN MOSSES. 



13 



medio instructs ; arcolationo laxiori, oellulis angustis pcllucidis, alaribus parum numerosis distinctis ovato-quadratis 

 pelluoidisj Perichsetialibus e basi lata vaginantibus pclluoido laxc elongate retioulatis subito fere in aeumine 

 flexuoso vol subreflexo attenuatis obsolete nervosis 5 Theoa in pedunoulo brcvi semipollioari ragoso sanguinoo, 

 gibboso-ovali ; annulo lato oomposito revolubili, oporeulo conico-acuto brevi ; peristoma interni dentibushyantibus, 

 eiliis binis gracillimis separatis. 



Ab Hypno Sullivantii Spruce, proximo differt : arcolationo foliorum laxiorc; cellulis alaribus majoribus 

 quadratis distinctis : foliis margine planis; annulo latiori revolubili; oporeulo eonico brcvi, &e. 



On the ground in the shade of O r e o d a p h n e C a 1 i f o r n i c a. April. 



72. Hypnum (SOLEROPODITJM) illeeebrum Bryol, Eur. 



On rocks and on the ground, San Francisco, Oakland. 



73. Hypnum (Solekopodium) oaespitosu m Bryol. Eur. 



On the ground among shrubs, &c, near San Francisco. 



74. Hypnum (Scleropodium) Calif ornioum Spec. nov. Dioicum, laxo intrioato-osespitosum, Caulc 

 serpente vage ramoso j ramis longioribus fUiformibus radicantibus ; foliis laxo imbrioatis apertis, ovato-lanceolatis 

 aouminatis ooncavia integris vol vix serrulatis, nervo valido sub aeumine ovanido instruetis ; arcolationo angustata 

 clongata, cellulis alaribus numerosis, ovato-quadratis distinotis plus minusvc granulosis ; Pericbfctialibus late 

 ovato-amplcctcntibus supcrnc lanoeolatis longe piliformi aouminatis, internis creetis, cxtcrnis aeumine reflexis ; 

 capsula in podicello elongate gracili torto supcrnc tantum papilloso rubollo, inferne stramineo laevi, ovata-cylindrica 

 brcvi, pallide viridi cernua sub ore subeonstrieta, vacua erecta eqnali; late composite annulataj Opcreulo pallido 

 oonioo aoutiusoulo lato ; Peristoma externi dentibus sanguineis, interni eiliis luteis pertusis, eiliolis singulis vel 

 binis robustis artioulatis separatis. Florae masoulse antheridiis robustis numerosis paraphysatis ; foliis perigoniali- 

 bus late-ovatis brcvi-aeuminatis integris. 



On rocks and dry sand near the Bay of San Francisco. 



75. Hypnum (Camptotiiecium) arenarium Spec. nov. Dioicum, laxo latcquc csespitosum. Caulc in- 

 tricate subcrccto parco vageque ramoso ; ramis sceundariis vel brovibus creetis subcurvatis utrinquc attenuatis, 

 vol longioribus filiformibus radicantibus. Foliis confertis undiquc imbrioatis creetis subapprcssis, lanecolatis aou- 

 minatis striatis, margine rcflexo subscrrulatis, plieaturoa marginalia basi utrinque cavis, nervo valido sub aeumine 

 ovanido instruetis, dense angustc areolaris, cellulis alaribus numerosis basim integram folii efficicntibus, ovato- 

 rotundatis minimis vix distinctis; Perieluxtii elongati foliis externis brcvioribus latc-ovato acuminatis reflexis, 

 supcrioribus ampleetcntibus subito in aeumine piliformi crceto vel rcflexo serrulato terminatis, margine superne 

 croso parcc grosse dentatis, arcolationo laxa basi quadrata polygona supcrnc clongata pellucida ; Foliis perigoniali- 

 bus brevibus late-ovatis brevi aouminatis vel aeutis integris nervosis, arcolationo pellucida; Capsula in podicello 

 elongate gracili basi papilloso rugoso supcrnc sublccvi, parva ovato-cylindrica cernua; Oporeulo magno conieo obtuso 

 apiculato; Processus interni eiliis pertusis, eiliolis binis vel singulis brovibus fugacissimis separatis; Annulo com- 

 posite lato persistente. 



Ab Hypno lutescente Ehdw, oui proximum, primo intuitu forma graeiliori, capsula cernua brevi, &c, differt. 



Covering sand around bushes near San Francisco. 



70. Hypnum Nut tallii With, Bryol. Brit, 

 Leekea Califomica Ilampc. Pamphlet, 1800. 



This fine species is a true C amptothecium related to Camptothecium aureum 



