xxxii 
THE AMATEUK’s SYNOPSIS. 
More or less soft and threadlike* 
Genus. 
Fam. 
Bushy ; nearly opaque ; marked by lines across 
Eytiphl^a 
yii 
,, ,, not marked by lines across . 
Ehodomela 
YII 
Dull purple ; entangled ; tips strongly curled inwards 
Bostrychia 
YII 
Eose-red ; set throughout with exactly opposite branchlets 
Bonnemaisonia 
YIII 
„ irregularly forked ; tips forked and hooked in . 
Microcladia 
XIX 
,, gelatinous ; tubular ; stems thick in the middle, 
gradually tapering to both ends ; repeatedly rebranched 
Chylocladia 
XYIII 
„ gelatinous ; loose-feeling ; bushy ; branchlets 
crowded ; generally opposite ; very slender 
Gloiosiphonia 
XYIII 
„ gelatinous ; loose-feeling ; branches and branch- 
lets alternate ; having a beaded appearance ; tips 
pointed ......... 
Dudresnaia 
XIX 
„ gelatinous ; loose-feeling ; branches chiefly oppo- 
site ; branchlets with blunt tips .... 
Helminthora 
XY 
„ gelatinous ; branches spreading all ways ; 
branchlets slender ; often swollen in the middle ; 
sometimes beaded . . . . . . . 
Naccaria 
IX 
clothed with Jointed Branchletee 725 . 
Stems robust, often hairy ; branchletee?2S tufted ; alternate 
Dasya 
YII 
„ thickened by rings {ivliorls) of overlapping 
branchletee?^s . . . 
Halurus 
XIX 
,, marked by lines across ; branchletee 72 S hair- 
like; fringing ....... 
Spyridia 
XYII 
,, undivided ; repeatedly branched ; branchlet- 
eens opposite, or in rings (whorls) .... 
Wrangelia 
IX 
Gelatinous ; parasitic ; branchleteeiis very short ; in close 
rings (ivhorls) ....... 
Crouania 
XIX 
contracted at intervals. 
Gelatinous, 
Contractions surrounded (whorled) by branches and branch- 
lets .......... 
Lomentaria 
YIII 
Irregularly branched ; contractions short and uniform 
throughout ........ 
Champia 
YIII 
Dull purple ; short ; matted ; contractions of different sizes 
Catenella 
XYIII 
Thick ; repeatedly forked ; contracted at the angles of divi- 
sion ......... 
SciNAIA 
XY 
Contractions strongly marked; bead-like; forming oval 
leaflets ; fresh sets springing from each contraction 
Chylocladia 
XYIII 
