Transactions and proceedings . simplices—raro iterum ramosos—edentes, basi ad solam costam redacts, deinde in laminam tenuemlato-linearem—hie illic constrictam adeoque inaequilatam—apiceangustatam, dilatatae ; subtus per intervalla radicellas breves fasci-culatas, necnon flagella aphylla radicellis hirta demittentes. CauUs(costave) validus semicylindricus, supra planus 2-3-cellulas caulis corticales 9-seriatae brevi-cyliudricae subcompressaepellucidae, internae 2-3-plo angustiores sub 20-seriatae frondis latitudine inaequalis, plerumque utrinque 4-6-cellulas lat
Transactions and proceedings . simplices—raro iterum ramosos—edentes, basi ad solam costam redacts, deinde in laminam tenuemlato-linearem—hie illic constrictam adeoque inaequilatam—apiceangustatam, dilatatae ; subtus per intervalla radicellas breves fasci-culatas, necnon flagella aphylla radicellis hirta demittentes. CauUs(costave) validus semicylindricus, supra planus 2-3-cellulas caulis corticales 9-seriatae brevi-cyliudricae subcompressaepellucidae, internae 2-3-plo angustiores sub 20-seriatae frondis latitudine inaequalis, plerumque utrinque 4-6-cellulas lata, bic illic ad 12 cell, usque lata, margine crenulato-erosa ;cellulfe majusculae elongato-4-6-gunae, in seriebus angulum 70° cumcosta formantibus disposita?., pellucidae, fere vacuae, leptodermes, ineetate subincrassatas, marginales longe minores. Flores dioici : $ ramulo perbrevi, facie costae postica oriundo, sursumcurvato, constantas. Bracteae 3-sticliae, 3-4-jugae; intimae multo linns Bof SocEclnu IR AV TalD. XVI. GMassee ai nat, del. sc. PTEROPSIELLA FR OTSTD IF ORTVT I S. pTEROPsiELLA,] Cephalozia. 391 majores libera3 pallidcie pellucidte elongato-areolatse ovatse, ultra medium bifidse, laciniis tenuiacuminatis denticulatis spinulosisve ; bracteolae bracteis conformes, dimidio miuores vel fere asquimagnaj. Perianthia bracteas triplo superantia, incurva elongata lineari-subiilata triquetro-prismatica, ore constricto 6-fida, laciniis capillaceo-acumi- natis subspinulosis. Calyj^tra periantliio 4-plo brevior ovalis tenuis. Capsula oblongo-cylindracea, ad basin usque 4-valvis, bistrata; celluloe exteriores tesselata:^, columnis parietalibus hie illic fukitse, interiores iibris seraiannularibiis dipsitis notatse. Elateres brevius- culi subol)tusi dispiri, nonnulli basales cseteris breviores obtusati. Sporae globosse, elateribus a?quilata?, minute tuberculosae. Amenta ^ postica—raro in frondis ipsius apice terminales—olivaceo- viridia, julacea; bracteai 1
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