I - ;
F t
n:::)
;U'' ■
2. II. llïDiiOriioiiA (Post, et Rupr. lllu str. p. 1 9 ) f io iu l e s i iu p l id
p e r g amen a o b o v a to -o v a l i turg ida , basi s en s im in s l ipi tom
at tenuata.
Dumont ia Hydrophora P o st, e t R u p r . l. c. la b . AXYF. fig. C. K ü lz ,
sp . p . 719 !
Piva Glandi formis Gm. Itis i. F u c . p a g . 232?
Fu c u s sao c a tu s T u rn . I lis t. IV . la b . 241 fig. tl. s in is tr a ?
Halymenia sac c a ta Ag. (pa r t im) .
Hab. in concl i is et saxis ad Kamlsclialkam (T i l e s iu s i ) .
Bn r sæ s u b p e rg ame næ, ro s eæ vel expallidæ, s impl ices , amji læ, 3 - 6-
jioll ioares ; ju n io re s turgidoe e t aqua roplelæ, s er ins au tem cor ruganl iir ,
col labuntur e t a r e n a imp len tu r ; p le rumq u o sociales cre s cu n t , vetus t iores
in te rd um so l i ta r iæ; o c c u r ru n t ctiam' b u r sæ apice divisæ.
3. H. FüCicoLA (Post. et Rupr. Illusi, p. 1 9 ) (rondo s impl ic i m em -
branacea o b o v a t o - o b l o n g a ( c o l l a p s o - s u b c om p r e s s a ? ) basi s ens i in
ili s t ipi tem attenuata.
Dumont ia fuoioola Post, e t R u p r . t. c. tab. Â X ÏF . fig. A. e t tab. X L .
fig. 8 0—81. K ü tz . sp. p . 720.
Hall, in s t ipi te Fuci Vcs iculos i ad insulam Silciui (bülko! ) .
Bu r sæ mcml i rana c eæ, ex s ic c a t io n e l'ragilos, vio laoeæ, 1 —2poll ioares,
bas i in s t ipi tem l inealem c o n t r a e t e . Colorem exs ic c a ta scrvat .
2. HALOcoEt.iA, Fronde eximie soboUfera subramosa; spìuero-
sporis crucialim divisis infra cellulas slra li epidermalici
immulatas nidulantibus.
4. II. eamentaceum (U n ti. Syst. Nat. II. p. 7 1 8 ) fron d e s o b o -
lifera sub ramo sa e longata cyl indracDa, basi a i i icoquc lon g e
attenuata.
3a. H. u e c am t a t c .m (P o s t, e t R u p r . l l lu s tr . p . 19) b u r s i s memb ran ao e i s
violaceis s impl icibus obliquo cunoa l is apice li iaulibus, ra r ius clausis
ot obovat is . ininimi.s a u t in te rd um 4— 6 lincalilnis, bas i in s t ipi tem
1—2 l inealem at tenuat is .
Dumont ia d e c api ta la Po st, e t R u p r . l. c. la b . AXA’F. fig. E. K u tz . sp.
Alg. p . 720.
Hab. pa ra s i t ic a in Bliodomcla Laric i a d insulam Sitcha.
For s variolas minor Dumo n t iæ fucicolæ, q uæ autem ra r ius apico
liiante , u ec tam ius igni tor dec api ta ta in Fuco vos iculoso g rcgal im oocuri it.
S t ru c tu r a inte rna non diversa.
Fucus ramcntaoous I. c. (fide Herb. ) T u rn . Ilis t. I I I . p .Z k tab. m \
Dumontia ramentaoe a t f iW . ; Arcsc/i. p. 91.
Halymenia ramcutaoea Ag. S y n . p . 37; Sp . Aly. p . 216 el S y s l . p .W P .
Scytosiplion ramentaceum L y n g b . lly d r . p . 61.
Giva soliolifcra F t. R a n . lab. 356.
Dumontia sobolifera Ro st, e l R u p r . p . 19. K ü tz . sp. p . 719!
Fuous b a rb a tu s G u n n .
F u cu s tubulosu.s Lep e c li. in Com m. Rc lro p . 1774 p . 476 tab. 20
(fid. spec.!)
Hab. in o c e a n o Glac ial i ad o r a s T e r ræ No væ! G r o e n la n d i a ; !
I s la n d iæ! e t F inma r e k iæ !
F rondes gregaria: 3 -C p o l l i c a r e s cyl indraoeæ, bas i ap ic eq u e longi s s ime
a t te n u a t e , medio inf iate , diame t ro lineam ple rumq u o æ q u a n t e s , sæp e
a n g u s t io r è s , al iquando usquo 2 lincas s u p e r a n t e s ; raro s imp l ic e s , fere
s emp e r proli fioationibus dens is s imi s quas i r amo sæ, rami s cons imilibus,
sæpe angus tior ibus , immo c a p i l la r ib u s ; his demura q uoque soboliferi's.
Substantia n unc admo d um te n u i s e t memb r a n a c e a in f ronde s impl iciore;
n unc cor iacea in f ronde soliolifera. Colo r illius c o c c in e o -p u rp u r e u s ; liujus
pu rp u r eu s aut oarneus e t fe re lividns. Duplici s t rato f rons co ntexta es t.
inter iores cellulæ majores ro tu n d a to - inæq u a le s et hyal inæ p lur ibus s t rat is fere
d ispos i tæ; exter iores singula ser ie di.spositæ, minores , r e t ú n d a t e . Spl iæ-
rosporæ in tenuior ibus specimini l ius obvcnientea, in cellulis infra e p id e r -
maticis ovolu tæ e t te n u i s t ralo ce l lularum suporficialium toc tæ, demum
rotunda to-oblongæ, cru c ia t im div isæ.
Postéis e t Bu p r e c h t Fue. graminifol ium L ep e cM n . ad b an c speciem,
Fuo. tubulosum vero ad Ulv. In c r a s s a tam PL D a n . referunt . Quod hoc
al tinet, obs ervatum volui speoimina authcntioa F. tubulosi , a Lcpcchinio
q uondam ad Dalhe rgium mi s sa ot Swa r tzio dein commiinicata, ad p ræ s e n -
tem certe port iiicro . Fuous tubulosus Tilesii duas species dive r sa s c om-
preh en d e re videtur, q ua rura unam ab Agardhio S p . Alg. p . 219, al toram a
Postcls et Bu p r e c h t t. c. p . 19 intel loclam p u la r em. D. Lepechini i E n d l. e t
K ü tz . Sp. t. c. q uæ Fuco tubuloso L ep e c h iiiii fimdata dioi tur, ho c modo ad
H. ramen ta c eum p e r t in e r e suspioor .
Species inquirendoe.
5. FüCüS TUBULOSOS (Tilesiu s mscr. in Ay. Sp. Aly. p. 2 1 9 ) ’’f r o n d e
m em b r a n a c e a d i c l io t om a tu b u l o s a c y l in d r ic a , axi llis ro tu n d a l i s .
F ucus tubulosus Tilesius in litt.
ll ab. a d o r a s Kamt sc l ia t ica s ,
Speoimina non sat i s comp le ta vix definire audeo, licet a ce ter is s p e -
oiebus Haly racuiæ satis dis t incla. F rondes aggrega tæ, dig ita les, dic lio-
tomæ, tubulosæ, scgmeiit is cyi iudricis, ' /(— 1 ü n eæ d iame t ro , obtus is .