2 CfRAMlE.t:. 



priiim fornian(il>iis cooperta? (Plilofa, Diidresnaja); aiit ab inilio 

 stiato proprio corticali iiiterriipto vel continuo obtcctfe (Ceraniie.T). 

 iJamilicatio frondiiim niinc omnino vaga , nunc dicliotoma, nunc 

 pinnata, pinnis distichis tetrastichis aut quoquoversum eoroclienlibus, 

 nunc proprie verticillata (Halurus, Crouania, Dudresnaja), verlicillis 

 aut distantibus aut confluentibus, ramisque verticillorum defiiiitis vel 

 quodammodo iiidefinifis et cum cctate sensim plurimis. 



Organa fiuctilicationis friplicis gcneris observata. 1:0 FaceUw 

 externfo nudoe, ad ramos lateraliter sessiles (Callithamnion, Coiyno- 

 spora) vel ramulis immutafis paucis sufTulfa^ aut plus minus trans- 

 lormatis involucraffc (Ceramio(o, Griffithsia, Ilalurus, Plilota), aut in- 

 tor ramulos verticillorum quasi immersie (Crouania, Dudresnaja), nu- 

 cleo simplici, rotundafo vcl lobafo, aut pluribus composito conslan- 

 tes, intra peridernia hyalinum, mucosum aut submembranaceum, 

 Sjemiuidia nullo ordine con<;lol)ata foventes. Gemmidia rotundafa 

 aut pressiono mutua angulata, luuco laxiori, vis solidesconte, invicem 

 separafa. Placenta propria rarissime adest (HaloploDma) : nuclei 

 plerumque ad ramum sessiles, laterales aut terminales. 2:o Sphw- 

 rospor(B nunc transformatione ramuli aut arliculi intefjri formalio 

 (CallithamnioiT), nunc collula coiticali transmufafa ort.-c (Ceramie;e); 

 illre ad ramos extcrna', nuda' aut ramulo vel involucro proprio suf- 

 fulfjc, h;v extra stratum corficale prominentes nudai aut celiulis cor- 

 ficalibus vicinis obtectiT; in plurimis splKTiica', nucleo trianMiilo 

 quadridiviso, in nonnullis sph.Troidea>, nucleo transversali divisiono 

 biparfito (Crouani.TC sp.) ve! s.icpius cruciafim (juadiidiviso (Calli- 

 flKimnii sp.), in paucissimis oblong.c, nuclco zonatim in sporas 4 

 soluto (Dudresnaja), aut pyriformes nucloo indiviso |?J (Goryno- 

 s[)ora). Spha-rospor.u aliquaiido composit;io obveniunt, h. c. intra 

 perisporium extornum non spoi;o simplices scd spIucrospor.T, sporas 

 4 contiiipntos, formantur (Callilhamnii sp.). 3:o Antheridia ad ramos 

 imnnitafos nuda, vel ramulis subtranslormatis involucrata, ramulo 

 miniifo traiisformato ipsa orta. cellulis miniitissimis hyalinis, avem 

 ciicumcirc;i dispositis, consfanlia. Spormafozoa hyalina, appondice 

 fIa;',(.'llifornii miinita, domum ox cellulis Aiifhoridiorum soliifa et per 

 breve tempiis afjilia, obsorvavit A. Derbcs (^Vrincipes de la Classif. 

 des. AJynes. p. 25). 



Anlheridia, Spihicrospora' (!t Favolhc in divcrsis individuis nor- 

 malitor obvoniunt, diversis qiuxpie aiit fere iisdem locis ojusdem 

 planta; cvoIut;i; rarissime in oodom individuo favelke ot sjdi.Tro- 



