60 16. HYMENOPHYLLUM.
Hab Gathered by Dr. Hooker in the Sikkim Himalayas, at an elevation of 11,000 ft.,
and determined by Van den Bosch from his specimens.—Intermediate in habit between
H. exsertum xai. polyanthos.
18. H. polyanthos, Swartz ; st. 2-3 in. 1., slender, wingless ; f r . 2-8 in. 1 1-3
in br. ovateroblong, tripinnatifid ; main raclm usually only narrowly winged
above • lower pinnæ triangular-rhomboidal, divided down to a narrow ceifrif
fn toZ eV e raT Z lz . on eaclFside, the lowest of which - “ f ^ i l b r •T o rr2 1 2
deeply p in natifid; ultimate segm. linear, 1-1 a Im. 1.,less th a n g lin. hr. , \
¿ ¿ p Z ^ û r termina l or axiUary on the segments on ^o li sides ;
divided déwn nearly to the base ; valves ovate m- ro n n ^ d , entiie oi shghtly
d e n tic n la te .- f t/. f t/. 1. / . 107. H. protrnsum, H k . Sp. 1. / . 104. i. 37. B.
Hab. Widely diffused throughout the Tropics, and V r h h t o n d
both north and south ; America, from Cuba and Jamaica southward to Brazil, S. Chili, and
yuanTernaLdez ; Aria, Nepail and Sikkim to Ceylon, Tsus Sima Malayan
lava and New Zealand ; West Tropical Africa, Mauritius and Madagascar. This
kckdeTnearly or Z ite , thirty of theLpecies defined by Van den B o so h .-It is a plant
of riendeZflacrid habit ès compared with species 19 to 28, with the segments sometimes
Lecmved “ h e rd r’y slightlF crisped. The New Zealand H. vUlomm of Colenso has
tb r s tin e ’s and rachis very slightly hairy. The Malayan H. Blumeanwn, Spv has
narrowZ and more elongated fronds than in the type, and pmnæ sometimes simply pm-
natifid only.
19. H . A n d im m , V. D. B. ; St. 3-6 in. 1., slender - ,fr . 6-12 in. h, 1-2 in. b r^
flaccid oblong, tripinnatifid ; main rachis na rrow ly winged abo v e , ^n n o e
distant, the lower ohlong-rhomboidal, divided down to a narrow centre, with 2-3
pairs of pinnl. which are flahellately or laterally cut into a few linear
iori 2-12 to a pinna, termina l or ax illa ry on the segments on both sides
divided more th a n halfway down ; valves rounded, with a b lu n t point, entiie.
Hab. Andes of Ecuador, /ameso«.—Closely allied to H. polyanthos, but elongated and
flaccid in habit, with fewer, more distant and less divided segments.
20. H. ladium, H k . & Gr. ; st. 2-3 in. 1., slender, winged above; > . 4-12 in. 1., 2-3
in. br., oblong or ovate-lanceolate, acuminate, tripinnatifid ; mam raclus Hoadiy
winged throughout ; lower pinnæ lanceolate-rhomhoidal, divided down to a broaffiy
winged rachis into several pinnl. in each side, the lowest of w h i t t are a few
times deeply incised, ultimate divisions broadly linear ; son 2-12 to a pinna,
terminal and ax illa ry on the segments on both side s; invol. ] 1™-
divided down nearly to the base ; valves rounded, n early twice as broad as deep,
the outer edge denticulate.—f t / . Sp. l . p . 102. f t / , c)' Gr. Ic. F il. t. 76.
Hab. Malayan Peninsula, Sir W. Norris; East Indies (probably Nepanl), Dr. Wallich.
21. H. Javanicum, Spreng. ; St. 2-4 in. L, erect, margined above with a broad
crisped wing ; f r . 4-8 in. 1., 3-4 in. hr., trian g u la r, tripinnatifid ; main raclm
bordered throughout with a broad crisped wing ; hwer pm næ 1^-2 m. 1., tria n gular
rhomboidal, erecto-patent, divided down to a narrow crisped centre into
several plane or slightly crisped pinnl. on both sides, the^ lower of which are
several times deeply pinnatifid ; sori 6-20 to a pinna, termina l and a x illa ij on
the segments on both sides ; invol, about as broad as the segments, divided down
nearly to the base ; valves orbicular, entire or d e n tic u la te .- -f t/. Sp. 1. p . 106.
H. fifobriatum, J . Sm. H k . Sp. 1. / . 102. t. 36. Ç. H. flexnosum, G « ? .
f t / . Sp. l . p . 106. Ic. P I. t. 962. H. crispatnm, Wa ll. H k . ^ Gr. Ic. F tl. t.
77. H. dædaleum, Blume. H. micranthiim, V. D . f t. — (3, f t . atromrms,
Colenso ; segm. of the frond nearly plane ; invol. smaller and narrower. 11. la s -
manicum, V. D . ft.
also belong h e re . » , i o - l
22. H. d em is sum ,S .a A z ; si 4-6 in. 1. erect f i™ ^ - g £ - L f l i t ty 'v Z g e d
3-4 in. br., L .iaW a iZ liom b o id a l, divided down v e j n early
nearly into the ^ « ^ V Z u o T p t n n a tfrm h ia l and ax illa ry on the segments
23. H . caudiculatum, Mart. ; furnislmd
6-12 in. 1., 2-3 “ •7*'-’/X ® t throughout with a broad shghttlvy ccimZ^f^d^ ’w f n r “ o ^ ^® ^ /¥ central rachis, the
late, erecto-patent, L ? 'V ’ forked or simple, broadly linear ; so n
hwer p m n l again Y the aneC of the segments on both sides ; mvo l ju r y
2-12 to a pinna placed ^ 1 7 7 ^ 7 to the base ; valves twice as broad as deep
large ( i in b r ), 1 » loZ-1/3, H . cauAatum, V. D .B . ; wmg of
considerably crisped and undulated.
TT n T! -1 Pttvn and Chili —Wing of the main rachis often 2 lines wide.
" " Z V rS !’B r f a r S f f i q n e , apparently belongs here.
f t. Fran-
24. H. recurvum Gaud. ; ^ * ¥ ;^ *Y r to \m L tiM Z Z 1 à tocAîs n m w l y winged
flaccid, pendent, «'’I'P S -aZ Z e P to L a teZ distant,’ elongated, divided down nearly
throughout ; /« « « « flaccid, er p ^ , j. compound/¿««Zs-; ult. segm.
Hab. Sandwich Islands, frequent.
25. K.flabellatum, Labill. ; si. / / “ Yand^flaoeW rachis winged
ovate-acuminate, tripmntofa^d, soniew g y erecto-patent,
above; lower pm næ 1-2 in. “reamy
divided down to a H ^ d l y winged lachis ^ j
are furnished on both sides with f ¿ a n halfway down ; valves
minal on the lateral segments ; m vo l ^ m . 197.
rounded, e n t i r e . - f t / . f t/. I . / . 111. H . nitens, f tr.
Hab. Australia, New ^alanffi I’® / ’"'ft
r i l t r Z i t ï ^ r a : r l : t o n Z r c r e 1 tta n in the type. A p la n t from Sumatra must
probably be referred to this species.
26. H. scairum, A. liicli.; si. 2-4 in wiZgef^b’oÎe,' thtokly ciliated
i n . h r . , ovate-acuminate, tripinnatifid , ma*»»« 6 erecto-patent, oblongwith
long brown bristly hairs ; lower ¿ ’«i®fofoto se v ek l pinnl.
rhomhoidal acuminate, divided, down nea l y ^ simple linear
rp p Z “ ! £ o r i f f 2 0 ? f T p Z Z , t r m i on "the lateral segments on both
UI
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