- ,..^7 - 



i 1(11111 (lie (('Il is .s<iiirr\\ liiil siiiiiliir lu t ', , al iiclinii lîm aiid liiss. Il tiiii,'lil iilsu lie ((iiii- 



|i:n'('il vvilli < ', . ItKiciDnia Kaciii. 



•.',()H. Cosinarinm dichoiidriiin W. mikI <i. S \\ i;m'. Ariiii)(|iii;i : ii" '\. 



•j.n^y Cosmarium distichoides sp. nov. 



i\. piii'viiiii, [iiiiilli) liiiiL;iiis (|ii:ini l.'iliiiii, {ii Mliirirlissiiin- ''unslricliiiii, Niiiii iiii!{iiHlo- 

 liiKMii cxlr'ciiiii lr\'il('r ;Hii|ili;ilii ; sriuirclluhr si'iiiicii <iil:iri-l i .i|iiv,irorriH!S, lal(M'il)CiH fonvr-xis 

 /|-r)-iiM(liil;il(i-t^i;iiMil;ilis cl citiii t;r;iiiiilis s|iiirsi.s '-( vcl ,) inlrii srd jiixlii marifiricrn, .-int^ulis 

 l)iisiilil)iis h'vilcr loliiiiilnlis, iini^iilis jipicalihiis vix r'oliindalis, a|iicc rccio, iiiira amliilu 

 soniicclliilii' série t;riiiiiil(iniiii iiijijiiniiu S, in (ciilrM supra isllitiiniii i^'iafiiilis liiriis Iraris- 

 vei'se oi-diiialis insliiicla' ; a M'ilicr \\s;\- clliiilicr. |)(p|is :jranidalis, L;('aiiidis liiiils iiiajoriltii.s 

 ad luedilMii iil['(iliii|iie ; iiieiiiliiana |iiiii(iala. 



Loi^'. .'iri-,')7 \i. ; lai. .'xi-.'i.i 7. ; ImI. isllmi ki \i. ; ciass. rH-i(| i/.. i |'|. Wlll, li:;. <>.'>-<')()). 



Alltioiinid : Wiv^ iiear llie Lai^iliia aliovc Mcdrljin, fii'iilial Aiidi's; :illil. /.Uu) m. 

 N" n. (UindinmiKircd : l.ai^iiiia ilii l'araiiin (au/. Nridi- ;iImi\i' lin^ola, Ivaslcrti .\iide.s ; 

 allil. '.(yiio tn. .N" ■>!]. 



Tliis specics sceiiis vvell eharat^leri/ed li\ llir nalure and disposiliou ol' ils i^Taniiles. 

 Il sliould he couipafcd willi (', . (lis/ic/iitiii Niuuisi, f.'. (lislicliinn var. irn'(jiil(irr |-.!if;iii,. 

 aiid Haciii., Ci. si'iilciiiiriinn l']ii:ni.. and Uac.iii., C .liiinl ; illii lÎAïaii. var. iinilhichiriiin 

 Eiciii,. aiid Ha(.ih. aiid G. ii/r)/ii('nsti IJuiu;e, froni ail nf w iiicli il is easily distiiii^iiished. 



2 11). Cosmarium docidioides Lutkkm. (= Peitiiiiii iiiliinlinn Halfsj Cleve ; Doci- 

 (liuiii ininiilinn Hai.fs). — Anliiif]uia : u"~ r, :>. and ."1. 



211. Cosmarium floriferum sp. nov. 



C. parviun, lani l()u;;uui (piani laluni, profunde con.slricluni, siini anu^usto-lincari 

 extreino Icviler amplialo ; seniicelluia' tiansvcrse obloii^o-semirirculares, an^-ulis lia.sali- 

 lius laie lolundalis, parle superimi inlVa apicem niaru;inis lalcraiis uniuscujusque leviler 

 rclusa, angulis supei'iorihws leviler rotundalis, apice recto ; memhrana verrucosa, verni- 

 cis nuilte dcprcssis cuni iiiarginibus minute K;ranulatis, verrucis ^ranulatis l\ ad niarffinem 

 lateralein niuinii|nemc[iie, l\ ad apiceni, 9 intra mart^inein scmicelliila', cl série singiila 

 verrucaruni 5 vel trans semiccllulam : a lalere visa' depi'esso-circulares ; a verlice visjc 

 elliplii'a'. polis laie nilnudalls, lalei'ilius ciiui luuinre lalo ulrol)i(pie. 



Long-. ■>.^^--i'!^ jj. ; lat. 26-28(7.; lai. a[U('. \<.-\!\ [j. ; lat. islh. t)-;),.") a ; crass. 16-17 [a. 

 (PI. XXIII, fig-. 70-71). 



Antioqiiia : Laguna above Medellin, Central Andes ; aliit. 2800 m. X"' 1 and 2. 



Tliis pretty litlle Cosmarium should be compared willi C. ornciliim Rai.fs forma 

 BouGESEiN (in \'idenslv. Medd. naturli. Foren. Kj(ibenhavn, r8(}n, p. 9^4- l- 4) f- 29) and 

 (/'. orrtatum forma Rouo.e (in Bill, till K. Sv. Vet-Akad. IlandI. Bd. 24, Afd. III, n" 12, 

 1899, p. 23, t. 1, f. 2GI. Allhou:;li in ilie outline of llie ceil (J. /Joriferiim closely resein- 

 bles (^. ornatum, il is consideraiih sniallei- llian anv forni of the lalter species and llie 

 granulation is of a lotally dill'erenl cliaracler. Tlie granules arc ihemscives nuich more 

 minute and are ananged in i;r(iii[is of fidui '1 tu (i al llie martrins of ffreally flallened 



