v ix infra m ed ium a tten u a ta , s e sq u ilin e am lo n g a , su p r a m ed ium s c r r a tu r is
p a u o is e x te r n o la te r o s e r r a ta ; p in n u la su p e r io r g em in a rum s o sq u ilo n g io r ,
in te r io r o la to r e n u d iu s c u la , o x t e r io r e la c in i is lin e a r ib u s p a u c is o b s ita .
.Spo ropby lla u t in p r o x im o a ffin ib u s a x illa r ia , in r am u lo b r e v is s im o f a s c i -
c u la ta , S im p lic ia e t p e d ic e lla ta , a r cu a ta e t u tr in q u e a tten u a ta , fo rm am fer e
le g um in iim L o ti ed u lis r o fo r on tia , s e r ie s im p lic i lo n g itu d in a li sp hæ r o sp o r a s
fo v en tia . C y s to c a rp ia s u h sp hæ r io a in a x illis fa s c ic u la ta , p lu r ib u s a b o r t ie n t ib u s
m in u tis s in g u la s f e r t ile s m a jo r e s s tip a n t ih u s . S u b s ta n t ia ju n io r is t e n u is s im a ,
a d u lt io r is su b c a r tila g in e a .
M . Pr.. cORALiomiiZA (Turn. Ilist. Fuc. Voi. II. p. 7 0 ) f r o n d e t n -
in i is simo c o s ta ta s i i b - p e c t i n a t o - p i n n a t a , p i n n i s a l t e r n e g em in i s ,
i n f e r i o r e la c in i i s q u e s u p e r i o r i s a liasi lata a t t e n u a t i s d e l tæ f o r -
in i b u s a r c u a t i s , e x t e r n e in f r a m e d i u m s e r r a l i s , s p o r o p l i y l l o r um
f r u ti c u lo d e c om p o s i t e p o c t i n a t o , s p o r o p iiy l lis in p i n n u l a s c c u i i -
d a tis p e d i c e l l a t i s a r c u a l i s u t r i n q u e a l t e n u a t i s , s e r i e lo n g i tu d in a li
s p l iæ r o s p o r a s f e r e n t ib u s .
Fu c u s coral lorhiza T u rn . l. c. tah. 90 (ma le j !
Thamnopliora coral lorhiza Ag. sp. p . 225. S y s t. p . 240 ! S u h r . Alg. Ec k l.
p . 7 tab. I . fig. 10! J . Ag. S ym b . in L in nm a X V . p . 9! K ü lz . sp . p . 887!
Ploc amium coral lorhiza H a r v . Aly. N o v . Z e la n d . p . 542. N e r . A u s tr .
p . 121 !
Fu o u s ci r rh o su s T u rn . ta b . 63!
l la b . in o c e a n o a u s i r a l i a d Cap. b. S p e i (L a l a n d e ! I la rv e y ! P a p p e ! )
a d N o v am Z e l a n d i am ( s e e . T u r n e r ) .
Fro n s peda l is t r ip in n a ta , 2— 3- l ineas la ta, d emum cos ta l ineam inter
p inna s flexuosam r e f e r e n te p e r cu r s a . Pin n u la rum gemin a rum in fer ior s imp
le x in t ro r sum a r cu a ta , a b as i lineam e t ul t ra lata s ens im a t ten u a ta e t fere
formam l i t te ræ A referens , ex te rn o la te re p e r to t am fere longi tudinem
s e r r a t a ; p in n u la s u p e r io r g emin a rum a lacini is d u ab u s in t ro r sum a rcua t is
c t conve rg e n t ib u s io itio p le rumq u e co ns t i tui tur . S p orophyl lorum f ruticulus
g lome ru lum d en sum h emi s p hær io um r efere ns , a ramo t ra n s fo rma to d e c
ompos i te p e d i n a t o formatus , sporophyl lorum s e r ie b r a c t e i sq u e al te rn an t
ibus . Sporophylla ad b r a c l e a s is tas, e x t ro r sum s e r r a ta s , inter iore latere
s eoundat im s er iata, pedicellata, simpl icia, a r cu a ta , u t r inque a t ten u a ta , serio
longi tudinali s p hæro sp o r a s fovent ia. Colo r e coc cineo p u rp u r a s c e n s . S u b s
tant ia d enique subcar t i lagiuea.
* * * Fronde valide costala, sporophyllis dichotomis, ramis
subclavatis in fra apicem sphærosporas paucas gerentibus.
12 . Pr,. ANGÜSTÜM (J. Ag. Sgmb. p. 1 0 ) f r o n d e v a lid e c o s ta ta p e c t i -
n a t o - p i n n a t a , p i n n i s a l t e r n e g em in i s , i n f e r i o r e l a c i n i i s q u e s u -
p c r i o r i s a basi l a t io r e a c um in a t i s su ln ila lis in t e g e r r im i s a n t in fra
a p i c em d e n t ic i ili s 2— 3 in s t n i c l i s , sp o ro p iiy llis d e c om p o s i t e
d i c lio t omis , r am i s s u b c la v a ti s o b tu s is in f r a a p i c em s [)Iiæro sp o ra s
p a u c a s g e r e n t ib u s .
Thamn. angus ta J . Ay . l. c.
Plocamium a n g u s tum Hook, e t H a rv . Aly. T a sm . p . 8. N e r . A u s tr . p .
122! Kiitz. sp. p . 885!
l lab . a d o r a s Novæ l l o l la n d iæ (Mus . P a r i s i ) ; ad T a sm a n i am
( i lb . H o o k e r ! ) .
Frons semipedal is , satis firma a t cæte r i s angus t ior , lineam dimidiam
exs ic cata vix .superans. l ’innularum gemin a rum inferior s implex, bas i
sesqui l ineam vix lata, su b u la to - a c umin a ta , aut omnino in teg e r r ima aut
( lente valde augento conspoc ta ) donticulis 2— 3, in fra apioem siti s, ins
t ru c ta ; pinnula su p e r io r minuta, inferiore latere su b n u d a , su p e r io re p e c t i nata
; adulUor ut r inquo pinnulata . Sporophyl la f rutioulura minutum axillarom
cons ti tuent ia, de c omp o s i to -d ich o toma , ramis o y l in draceo-c lava t is obtus is
infra apioem s p hæro sp o r a s p a u c a s subduplioi serio fovent ibus .
13. Pr,. c o s t a ium ( J . Ag. Symb. p. 1 0 ) f r o n d e v alid o c o s ta ta d o -
c om p o s i t o - p i i i n a t a , iiiiinis a l t e r n o g em in i s , i n f e r i o r e la c in i is q u e
s n p e r i o r i s a basi la ta a t t e n u a l i s o b tu s ii is c u li s a r c u a tis , o x t e r i o r e
l a t e r e in f r a m e d i u m s e r r a t i s , s p o r o p b y l l i s d o c o m p o s i t e - d i c b o -
tom is , r am i s s i ib s p a t liu l a to - c la v a t is in f r a a p i c em s p b æ r o s p o r a s
p a u c a s g e r e n t i b u s .
Th. cos ta ta J . Ag. t. c. in L in n c ea X V .
P loc amium co s ta tum Hook, e t H a rv . Alg. T a sm . p . 8 ! N e r . A u s tr . p .
122! K ù lz . Sp. Alg. p . 886!
Delesser ia p lo c amium var. cos ta ta Ag. sp . p . 181! e t S y s t. p . 251!
Thamnopliora Cunninghami i G re v. in Hook. Comp. Boi. Mag. II.p .Z 'ì'ò ? .
Ploc amium Cunninghami i H a r v . Alg. N o v . Z e l .p .^ h ïW K ii l z .S p .p .S S ù ì
Fucus maxillosus P o ir . see. Ag. sp.
Hab, in o c e a n o a u s tr a li ad N o v am Ho lla n d ia r a (Ytus. P a r i s ! ) ;
a d T a sm a n i am (Hb. H o o k e r ! ) ; a d Nov. Z e l a n d i am (Ciin n in g li am !
Ilb. H o o k e r ! ) .
Frons fere pedali.s, l ine am c i rci ter lata, ramif icatione cum prior ibus
conveniens , cos ta val ida cum a n t e c ed e n te . Pinnæ oi roumscr ipt iono s u b -
lanceolatæ. P innula rum g emin a rum infer ior s implex, a basi semi l ineam
la ta sens im at tenuata, s u p e r io r e ma rg in e su b r e c to , inferiore arcua to ser rato,
s e r ra tu r i s ab apice d e o r sum in fra me dium cont imiat i s , al iquando usque
bas in at t ingentibus . Pinnula su p e r io r dum min u ta in ferio ri q u o ad formam
et ma rginem infe r iorem similis, a su p e r io re ma rg in e pinnulam p e c t in a t am
emi t teus . Sporophyl la u t in a n t e c e d e n te ; a t rami inf ra apioem c ra s s iore s
et abrupt ius indo at ten u a t i amb i tum s u b sp a th u la tum mibi obtulerunt.
20*