BOTANICAL BVLLETIX. 31 



former, when sterile, from the hitter, oi- hirge foi-ms of it from Hypnum nemorosum. 



lihynchosteyhim Jameuli, Sulliv. Icon. Suppl. p. 92, t. G8, is no Rhynchostegium, 

 iis a fi,Iaiice at tlie tioiire of the periehsetli will show I — its leaves being very large, 

 convolute and i)lieate. It is no doubt Ilypnum liainuln.'^uin? Sulliv. and Lksqx. 

 Kxsie. ed. 2, n. 478;=////;). j.allesccns, Muse. Appallach. n. 414! = ////;^. {Cupresaina) 

 depressulum, C. Mull. Manip. Muse. Nov. 1875, n. 5 and 6, p. 7 l=Ptjlaiscea polyantha, 

 Jamks Catalogue (18(54)! Tiiat it is a mere form, or var. of Ilypnum reptile, MiCHX. 

 F\. Bor. Amer. (1803), there cannot be a shadow of doubt. And Lindberg has 

 shown that Miciiaux's /////'. reptila is the identical Leskea pallescens Hedw. Sp. Muse. 

 (\HOl);—IIyp. jjallescens (Hedw.) P. Beauv. Prod r. (ISO.")). The moss which we 

 now have uniler consideration is the var. protuberans (Bkid.) Lindb.; — Hyp.pal- 

 Usrens Br. Eu. (In the work last quoted, as well as Schimpei-'s Synopsis, the 

 {)erichc«tial leaves are erroneouslj' said to be unieostate.) I have not seen the 

 identical sj)ecimens from whicii the figures were drawn for the Icones Suppl.; but 

 have the plant as there represented from various ( northern ) localities. Hyp. reptile, 

 ynv.virida. Muse. Appalach. n.416, appears to bea form of this same variety {protuber- 

 aiis)-. in some respects it closely resembles liyp. adnatum (a sort of connecting link 

 between the Ambhjstpgia and the Stereodontes) and is not infrequently confounded 

 with it. 



1/ Notes on IIepaticology, by C. F. Austin. — Jungekmania (Lophocolea?) 

 EXiGUA, n.sp. — Planta; minutissinije parasitica^; caulesubc£espitoso siraplici erecto 

 tenuissimo vix lineam longo, foliis dissitis suberectis obliquis decurrentibus ovato- 

 ([uadratis acutiuscule subin;cqualiter emarginato-bilidis, amphigastriis subulato- 

 filiformibus (obsoletisve), fructu V 



Parasitic on the leaves of '■'■Plaijiochila distiitctifolia'''' from Jamaica, in Herb. 

 Taylor.— The lowermost leaves are but little larger than the amphigastria, and 

 usually like them, subulate. Th' re are no amphigastria above the base of the stem, 

 where the leaves appear to be .3-ranked Areolation minute. 



Cephalozia FRANCisci,var. b, fluitans. — Junyermania in/lata,viir.(], fluitans, Nees. 

 Ilepat. Europ. 11, p. 48; Synop. Hepat. p. KKi; Gott. <& Rabenii. Exsic. n. 581! 

 AusT. Exsic. n. 3ol~Cephal'izia uljtusiliha, Lindb. Bot. Xot. 1872, p. 164; Dumort. 

 Ilepat. Europ. (1874) p. 89. — a. dadorrhixans, Geo. Staiu.kr in litt. Jan. 1, 1876. — 

 C. fluitans. Aust. MSS. 



(Jaulis pradongus, inter Sphagna scandens vel "in acjua tluitans," e ventre 

 riagellifero-ramosus et hie illic copiose radiculosus, dissite follosus. Folia caulina 

 pallida (semper?), laxa, e basi angustiori vix decurrente, oblongo-elliptica, pro- 

 funde biloba, niargine integerrima, sinu angusto, lobis obtusis, magis minusve 

 iueTsqualibus (ventrali longiore), apice incui-vo planove. Amphigastria minutaap- 

 pressa inconspicua (nonnunquani obsolete) subdiftormia, sed plerumque triangu- 

 lari-lanceolata, apice angustissime Assort incurvo. Flores dioici. Pericluetium 

 magnum, in ramulo ventrali longiusculo et brevissimo inferne microphyllo ter- 

 minali; ejus folia caulinis subconforniia, longiora, ovato-oblonga, lobis acutis vel 

 acutiusculis; amphigastria exteriora quadrato-oblonga subcuneatave, obtuse et in- 

 .•equaliter emarginato-biloba, interiora elongata, angusta et Integra. Colesula (im- 

 matura) brevis, ovalis,obtusa, obtussime trigona, ore plicato sublacinulato, laciniis 

 truncatis, uudis. Andrceciuni (amentulo masc.) vel magnum et in caule primario 

 vel ramulo logiusculo continuum, vel parvum et in ramulo i)erbrevi tcrminale; 

 folia perigonialia fere conformia, conferta niargine dorsali piano et nudo vel inllexo 

 et tunc obtuse unidentato, antheridium singulum in axillo singulo foventia; am- 

 phigastria majora et magis conspicua. 



var. b, elagellifera. — Juwj. inflata, var. b, flaijidlifcra, Synop. Hepat. p. 100. 



*' flagellis vcntralil)us crel)ris longis foliolis parvis bitidis <listantibus inspersis. 



An distincta species?" Synop. Hepat. 1. c. adnot. 



I am indebted to Mr. Geo. Stabler, of Levens, England, for fruiting specimens. 

 The plant grows in peat bogs from New Jersey to Canachi. as well as In the Nortli- 



