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G L E IC H E N IA H E RMA N N E
FILICES.—G l e i c h e n e æ . B r., Kaulf. S o i i i s m a t o p t e m d e s . Willd.
G e n . C h a r . G L E I C H E N I A . OijOiMfc a n n u lo c om p le to s tr ia to su b se ssile s, in so ris ro tu n d is
d o rs a lib u s , sæ p iu s definita?. In d u s ium n u llum .— F ro n d e s dichotoma m l fu r c a ta .
G l e i c h e n ia H c i-manni ; s tip itib u s d ich o tom is p ro life ris , ram is u ltim is ta n tum fro n d o s is , fro n d ib n s
lan c eo la tis p in n a tifid is g lab ris s u b tu s g lau c is , p in n is lin e a rib u s in te g e r r im is o b tu s is , c ap su lis
num e ro si» p y r ifo rra ib u s subpediccUatis. £ r .
G le ic h e n ia H e rra a n n i. B r . P ro d r . F l. N o v . H o l l . p . l 6 l .
M e r te n s ia d ich o tom a . TFiUd. in A c t . H o lm . 1804. p . 1 6 7 . S w a r tz . S y n . FU. p . 1 6 3 . m i l d .
S p . P l - v . b . p . r i -
'P d ìyp o à im n d ich o tom um . T h u n b . J a p . p . 3 3 8 . t. 3 7 ?
D ic ra n o p te ris . B e im h . in S c h ra d . n eu J o u r . 1 8 0 6 .y?. 3 8 . { fid e B r )
F ilix C u lin a ria . R um p h . A m b . v . 6 . p . 85. t. 38.
H ab. I n In d ia O r ie n ta li, J a p o n ia , Z e y lo n a , A m b o in a , J a v a , M a u r itio , N c p a lia . m a llic h . I n
N o v a H o lla n d ia . B r . In su lis S o c ie ta tis e t S an d v ic en tib u s . I n I n d ia O c c id e n ta li, D o m
in ic a , in su la S a n c ti V in c e n tii. R e v . L . G u ild in g .
Caudex repens, tomentosas, fibrosus.
Stipes 3-pedalis, lævis, fuscus, nitidus, teres, repetitim dicliotomus, ex axillis proliferus, foliaceo-bracteatus, ramis
ultimis frondosis.
Frondes geminato-fiircatæ ; singula lanceolata apice attenuata, infra medium latiore, basi subangustiore, paululum
falcata profunde pinnatifida, segmentis horizontalibus, linearibus, subattenuafis, apice obtusis, emarginatis,
margine Ìntegro (nisi in speclminibus nostris e Nova HoDandia e t Insula Mauritii, ubi segmentis inferioribus
iterum pumatifidis). Color partis superioris frondium viridis, subtus glaucus. Racliis costaque glabræ, stata
juniore non raro pubescentes. Nervi obliqui, obscuri, dichotomi.
Sori e capsulis 5—10, nervis, intra costam e t marginem insertis, rotandato-pyriformibus, pallide flavo-fiiscis,
indusio destitutis, reticulatis, annulo lato dìstincto arliculato integro cinctis, brevissime pedicellatis, superne
hiantibus.
Sm in a minuta, oblonga, subreniformia.
Fig. 1. Portio fi-ondis a parte inferiore visa. f. 2. Ejusdem portio cum soris. f. 3. 3. 3. Capsulæ. f. 4 . Semina:
—magn. auct.
T h is is p e rh a p s th e sp e c ie s o f th is cu rio u s g e n u s w h ich is th e m o s t g e n e ra lly d isp e rs ed , b e in g
fo u n d in th e W e s t a s we ll as th e E a s t In d ie s , in J a p a n , in th e S o c ie ty a n d S an dw ich Is le s , a n d in
N ew H o lla n d . A ll th e s e co u n trie s , h ow ev e r, a re iu traü -o p ic a l, e x c e p t J a p a n a n d N e p a l. T h e p la n t
is liable to c o n s id e rab le v a ria tio n . T h e sp e c im en fig u re d in th e F lo ra J a p ó n ic a , a n d th o s e w h ich
we h av e re c e iv ed fi-om M . B o je r a t th e Mam-itius, as w e ll a s o u r N ew H o lla n d indiv id u a ls, h a v e th e
low e rm o s t s egm en ts o f th e fro n d s p in n a tifid , so as to a p p e a r lik e th o s e o f th e o r ig in a l Gleichenia,
w ith wh ich we th in k M r. B row n h a s ju s tly u n ite d th e M e r te n s ia .
F rom th e P r in c e o f W a le s I s la n d we h a v e a spe c ie s w h ic h s c a rc e ly differs f rom th is b u t in
h a v in g th e s e gm e n ts o f th e fro n d m u c h lo n g e r a n d eq u a lly lin e a r, so th a t e a c h fro n d h a s a lm o s t
ex a c tly th e ap p e a ra n c e o f th a t o f P o ly p o d ium p e c tin a lum . P ro b a b ly th e M e r te n s ia em a rg in a ta o f
Rad d i, from B ra z il, is n o t re a lly d is tin c t f rom o u r p la n t. I t h a s th e low e r s e gm e n ts o f th e fro n d
s h o r te r , th e wh o le fro n d som ew h a t n a rrow e r : th e em a rg in a te ap ic e s a re c om m o n to b o th . T o th is
R addi re fe rs th e M . glatic e sc ens o f H um b o ld t a n d W illd cn ow .
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