SYNOPSIS OF THE SPECIES. XIX 



91. longifrnctus 3 tufts large and feathery; filaments robust, excessively 



branched, decompound ; branches mostly opposite, with short, spine-like 

 ramuli ; articulations as long as broad ; propagula very long, linear-lan- 

 ceolate, terminating the branches and ramuli. (Tab. CCLVIII.) 



92. granulosus j olive, robust, ' slightly entangled; branches free, repeatedly 

 divided ; lesser branches and ramuli opposite, spreading ; spores elliptical, 

 dark-coloured, sessile. (Tab. CC.) 



93. sphaerophorus • filaments densely tufted, much branched ; upper branches 

 patent, opposite or in fours, having opposite, patent ramuli ; spores globose, 

 sessile, opposite one to the other, or to a branchlet. (Tab. CXXYI.) 



94. brachiatus; branches opposite or quaternate, spreading ; ramuli opposite, 

 patent ; propagula forming oblong swellings in the nodes of the lesser 

 branches. (Tab. IV.) 



95. Mertensiij distichous; branches opposite, of imequal length, closely set 

 with short, slender, opposite ramuli ; spores binate, immersed in the ra- 

 muli. (Tab. CXXXI1.) 



XXXV. MYRIOTEICHIA. 



96. clavseformis ; frond clavate ; ramuli gradually longer upwards. (Tab. CI.) 



97. filiformis; filiform, slender, beset at irregular intervals with oblong clusters 



of short ramuli. (Tab. CLVI.) 



II. RHODOSPERME^E. 



Order 7 . RHODOMEL AC I S 1 . . 



f 



XXXVI. ODONTHALIA. 



98. dentata; frond irregularly pinnate; branches deeply pinnatifid ; lacinia? 

 alternate, sharply toothed toward their truncate extremities. (Ta b. \ X X I \ . i 

 (Tlw colour on the plate is incorrect. This plant is of a deep blood-red 

 colour when growing, but becomes dark on exposure to the air.) 



WWII. RHODOMELA. 

 r J*J. lycopodioides ; divided near the base into several, long, simple branches 

 which are densely set with multifid, slender ramuli. (Tab. L.) 



100. subfusca ; much branched; branches irregularly decompound, and clothed 

 with pinnated branchlets mixed with scattered subulate ramuli ; pinnules 

 subulate. (Tab. CCLXIY.) 



WW III. BOSTRYCHIA. 



101. scorpioides; frond flexuous, forked ; branches bi-tri-pinmite ; pinna and 

 pinnuhe patent; apices strongly rolled inwards. (Tab. XL\ 111.) 



\WI\ RYTIPHLiEA. 



102. pinastroides -, frond terete; leaser branches pectinate-pinnate, the pinna 



ind, with their tips inflexed. (Tab. LXXXV.) 

 L03, compianataj brown-red, oompreased, pinnate or bi- tri-pinnate ; pinnules 



subulate, erect ; ;i\il> \vr\ acute. (TAB. CLXX.) 



nil. thuyoides; stems terete, erect, alternately branched ; branches erect, rir- 



