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XXII. STBIARIA.
4 3 . a t t e n u a t a ; branches and ramuli mostly opposite, tapering to each extremity.
(Tab. XXV.)
XXIII. PUNCTABIA.
43. l a t i f o l i a ; oblong or obovate, pale green, blunt, suddenly tapering at the
base into a minute stipe. (T ab . VIII.)
44. p l a n t a g i n e a ; frond bl'ownish-olive, cuncate at the base. (T ab . CXXVIII.)
45. t e n u i s s im a ; frond sublinear, very thin and transparent. (T ab . CCXLVIII.)
XXIV. ASPEBOCOCCUS.
46 c o m p r e s s u s ; frond compressed, flat, linear-lanceolate, obtuse; sori oblong.
(T ab . LXXII.)
47. T u rn e r i; stipe filiform, suddenly expanding into an inflated, obtuse, delicately
membranaceous, bag-like frond. (T ab . XI.)
48. e c h in a tu s ; cylindrical or clavate, much attenuated at the base. (Tab.CXCLV.)
XXV. LITOSIPHON.
4 9 . p u s i l l u s ; fronds filiform, very long, clothed with peUucid hairs; spores
scattered. (Tab. CCLXX.)
60. L am in a ris e ; fronds short, stellatelv tufted, smooth, transversely banded,
bands close together; spores scattered. (T ab . CCXCV.)
Order 5. CHORDAKIACE^.
XXVI. CHOEDABIA.
61. f la g e ll if o rm is ; branches lateral, subsimple, filiform, n aked; peripheric filaments
club-shaped, (T ab . CXI.)
63. d iv a r ic a t a ; irregularly divided; branches subdichotomous, flexuous, having
short, very patent, forked, scattered ramuli; peripheric filaments capitate.
(T ab . XVII.)
XXVII. MESOGLOIA.
5 3 . v e rm i c u l a r i s ; frond unequally distended, clumsy; branches irregularly
pinnate, worm-like, thickened in the middle; ramuli copious. (Tab. XXXI.)
6 4 . G r if f ith s i a n a ; frond slender, equal; branches scattered, filiform, long,
simple, nearly bare. (T ab . CCCXVIII.)
B 5. v i r e s c e n s ; frond filiform, gelatinous; branches long, slender, villous;
ramuli numerous, patent, short, linear, obtuse. (T a b . LXXXII.)
XXVIII. L EA TH ES IA .
56. tu b e r i f o rm i s ; fronds at first stuifed with cottony fibres, at length hollow.
(T ab , CCCXXIV.)
57. B e r k e l e y i ; dark brown, depressed, sohd. (T ab . CLXXVI.)
XXIX. BALFSIA.
58. v e r r u c o s a , Aresch.; frond orbicular, adhering by its whole under surface,
warted in the middle, (Tab. XCVIII. R. deusta.)
{Ralfsia deusta, J. Ag., founded on the original Zonaria deusta of Agardh,
is a different species.)
XXX. BLACHISTA.*
59, f u c ic o la ; tufts pencffled ; filaments long, attenuated upwards ; articulations
once or twice as long as broad. (Tab. CCXL.)
60 f la e c id a ; tufts pencilled ; filaments long, flaccid, much attenuated at the
base, the lower articulations half as long as broad, the upper of equal
length and breadth. (Tab. CCLX.)
61 c u r t a ; -filaments very short, club-shaped, rather rigid, rising from a tubercle ;
articulations as long as broad ; spores pear-shaped. (Tab. CCCXXXii.)
63. s t e l lu l a t a ; tufts very minute, stellate; filaments tapering at the base,
slio-htly clavate, obtuse; articulations twice as long as broad, uniform.
( t I b . CCLXI.)
63 s c u tu l a t a ; filaments short, rising from an oblong, convex, shield-like tubercle,
composed of densely packed, dichotomous fibres ; articulations 2-3
times as long as broad ; spores oblong. (Tab. CCCXXIII.)
64 p u lv in a t a ; tufts very minute, globose; filaments much tapered to both
ends, the basal joints 3-4 times, the middle U , the apical as long as
broad. (Tab. XXVIII. A . E. attenuata.)
65. v c lu tin a ; spreading in thin, indefinite velvety patches; filaments very
minute, filiform ; spores elliptical, pedicellate. (Tab. XXVIII. B.)
XXXI. MYEIONEMA.
06 Strangulans ; patches convex, confluent ; vertical filaments clavate, densely
set ; spores obovate, on short stalks, rising from the decumbent filaments.
(Tab. CCLXXX.)
67. L c c la n c b c r ii ; patches orbicular, thin at the edges, convex in the centre ;
spores on long pedicels. (Tab. XLL A.)
68. p u n c t if o rm c ; patches globose; spores affixed to the vertical filaments, near
their base. (Tab. XLI. B.)
69. c la v a tum ; very minute, rather convex; filaments clavate, mostly bifid;
spores obovate, pedicellate, affixed to the filaments. (Tab. CCCXLVIII.)
Order 6. ECTOCARPACEÆ.
XXXII. CLADOSTEPHUS.
70. v e r t i c i l l a t u s ; branches slender; ramuli mostly forked, subdistant, regularly
whorled. (Tab. XXXIIL)
71. s p o n g io s u s ; branches thick and clumsy ; ramuli mostly simple, irregularly
whorled and densely imbricated. (Tab. CXXXVIII.)
XXXIIl. SPHACELABIA.
73, filio in a ; shaggy at the base; stem slender, irregularly divided; branches
lanceolate, erecto-patent, bi-tri-pinnate; pinnæ erect; pinnules multifid;
aU the axils very acute and narrow. (Tab. CXLII.)
73, S e r tu l a r i a ; slightly shaggy at the base ; stem weak and slender, irregularly
divided; branches linear, horizontally patent, tiipinnate; pinnæ divaricate;
pinnules multifid ; all the axils very obtuse and wide. (Tab. CXLIII.)
74. s c o p a r i a ; coarse and of large size, shaggy at the base; upper branches
once or twice pinnated ; pinnæ erecto-patent, awl-shaped, the lower ones
pinnulate. (Tab. XXXVII.)
* Incorrectly spelt Blachistea in the body of the work.