i lil
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6 0 . A C R O S T I C H U M .
**** Surface o f the fro n d densely scaly. Sp. 46-65.
A. Fronds 1-4 i Sp. 46-52.
46. A. ovatum, H k . ; rhizome filiform, very wide-creeping, with slender fibrillose
bright-brown scales ; S t . distant, J - J in. 1., clothed with spreading scales ;
barren f r . J - f in. 1., | - J in. br., roundish or broadly ovate ; texture subcoriaceous
; both r i * s often densely clothed with fimbriated ferrnginous scales ;
veins hidden ; fertile f r . the largest, and on longer stems.—« / , b p . 5. p . „23.
H k . 4 Gr. t. 140.
Hab. Mexico to Ecuador and South Brazil.—Best distinguisbed from the small forms
of spathulatum by its wide-creeping rhizome.
47. A . procurrens, M e tt.; rhizome slender, wide-creeping, with squarrose
linear-subulate bright-brown scales; St. 0-1 in. 1., slender, ciliated ; barren f r .
1-3 in. 1., J - J in. br., spathulate, the point blunt, the h a ft narrowed very
gradually ; texture subcoriaceous ; both sides scattered over and the edge ciliated
with long, linear, da rk chesnut-hrown scales ; veins distant, slender ; ferUle f r .
much smaller th a n the others.—« / . S p . S. p . 226.
H ab . Cuba, Fm d le r, 793.—M o st lik e ly a small form of villosum. T h e scales of th e
fro n d a re th e same, b u t th a t has th e stems tu fted .
48. A . spatkulatum, Bory ; st. densely tufted, 1-2 in. ]., firm erect, clothed with
soft spreading brown fibrillose scales ; barren f r . J -4 in. 1., m. br., obovate-
spathulate, the point blunt, the base tapering narrow y or gradual y ; te x tile
cm-iaceous ; both sides scattered over and the edge usually densely ciliated with
small linear-subulate reddish-brown scales ; ve.ms hiffilen ; ferUle J r . smaller
th an the other and the stem longer.—A . piloselloides, Fresl. I lk . Sp. b .p . 227.
F il, E x . t. 29.
H a b Cuba an d Mexico to B ra z il and P e r u ; T ris ta n d ’A cu n h a Ceylon, N a ta l, M asca
ren la \ z a .-A .oU u s a tum , Carm. H k . & Gr. t. 22, from T ristan d A cu n h a , an d 4 And-
d ia n um , H k . & Gr. t. 4, a re forms, th e la tte r w ith th e stem especially den sely c lo th ed w ith
d a rk -b row n fibrillose scales, an d th e fro n d 3-4 in 1., J in. b r.
49. A . Matthewsii, Fée ; rhizome woody, wide-creeping, the scales small,
dense, linear, nearly black ; s t . 2-3 in. 1., wiry, clothed throiigliout with small
lanceélate scales, nearly black in the middle, with a grey border ; barren f r .
2-3 in. I., J - # in . br., both ends narrowed g rad u a lly ; îc tî« « coriaceous ; scales
small, dense, peltate or ovate, brown or nearly black in the middle, with a pale
sometimes silvery border ; vdns hidden ; fertile fr.^ than the others, on
longer stems.—H k . Sp. 5 .p . 230. A. Hartwegii, Fée, H k . I. c.
H a b . A ndes, from Mexico to Pei-u.—T h is should p ro b ab ly be reg a rd ed as a more
scaly v a rie ty o f 4 . Buac saro, w itb which it agree s in te x tu r e an d mode o f growth.
60. A. a c r o c a r p o n , Mart. ; r h i z o m e woody, often 1-2 ft. 1., clothed with slender
squarrose subulate dark-brown scales ; S t . distant, those of the barren fr. 2-3 in. 1.,
fibrillose throughout ; b a r r e n f r . 3-4 in. 1., J - f in. br., the point blunt, the base
narrowed graduallv ; t e x t u r e coriaceous, the edge inflexed, the upper s u r f a e e
clothed with minute peltate furfuraceous scales, the lower scaly on the elevated
midrib th ro u g h o u t; v e i n s f e r t i l e f r . like the barren one, b u t the stem
longer.—I lk . Sp. 6. p. 208.
H a b N . G ran ad a, Ecu ad o r, B r a z i l .-T h e fronds o f th is a re lik e th o se o f th e la s t in
te x tu r e an d shape, b u t a re n o t scaly over th e surface beneath.
61. A . s u c e i s w f o l i i m , T h o u a rs ; r h i z o m e woody, the scales dense, linear-
subulate, nearly black ; s t . 2-3 in. 1., firm, erect, densely clothed with spreading
linear scales, da rk chesnut in the centre, grey at the edge ; barren f r , 3-4 in. 1.,
1-1 j in. br., blunt a t both ends ; texture coriaceous ; both sides densely clothed
with pale-brown linear scales ; veins hidden ; fertile f r . smaller th an the other
and on a much longer stem.—/ / / . Sp. 5, p . 241. H k . £ Gr. t. 2.
Hab. Tristan d’Acunha, and reported also from Bourbon and Mauritius.—Habit of
A.
B. Fronds 6-18 i\ g, Sp. 52-65.
62. A. cinnamomeim, Baker ; rhizome short-creeping, the scales dense, linear,
bright reddish-brown ; st. 3-4 in. 1., firm, densely clothed with similar but
narrower squarrose scales ; barren f r . 4-6 in. 1., j - j in. br., narrow*ed gradually
to both e n d s ; texture coriaceous ; both sides, especially the lower one, densely
clothed with long bright-yellow hair-like scales, which are scarcely a t all
flattened or c ilia ted ; veins hidden ; fertile f r . shorter and blunter th an the other,
the stem longer.
Hab. Cameroon Mountains and Clarence Peak, Fernando Po, G. Mann.—This agrees
with the next in size and habit, but the scales are quite different.
53. A. lepidotum, W illd .r h i z o m e thick, woody, the scales very dense, linear,
glossy, b la c k ; st. 1-8 in. 1., Arm, scaly th ro u g h o u t; barren j r . 8-6 in. J.,
in. br., the point usually blunt, the base cuneate or rather ro u n d ed ; texture
coriaceous ; scales furfuraceous and white on the upper surface, large, dense,
ovate, ciliated, and ferruginous on the lower one, those on the midrib with a
black middle ; veins hidden; fe r tile f r . similar to the other, b u t the stem longer.
— H k . Sp. 5. p . 238.
Hab. Andes, from Columbia to Peru.—To this appear to belong A. Engelii, Karsten,
A. Dombeyanum, Fée, the West Indian A. vestitum, Schlecht., and Mexican A. fulvum,
M. & G., and probably A. mfescens, Liebm. I t may be a dwarf mountain variety of
A . muscosum.
64. A . strictum, Raddi ; rhizome woody, short-creeping, densely clothed with
small lanceolate da rk chesnut-brown conspicuously ciliated scales ; st. 1-2 in. 1.,
clothed with similar scales ; barren f r . 4-6 in. 1., j - j in. hr., narrowed to hoth
ends ; texture subcoriaceons ; vdns mostly simple ; upper surface nearly or quite
naked when old, lower densely clothed with bright reddish-iirowm scales, whicli
are almost reduced to stellate tufts of hairs ; fertile f r , about equal to the other,
b u t the stem longer.—I lk . Sp. 5. p . 225.
Hab. Brazil and Columbia.—This bears the same relation to auricomum that lepidotum
does to muscosum.
55. A. villosum, Sw. ; rhizome woody, b u t not thick, densely clothed with
bright-hrown soft fibrillose scales ; st. tufted, 2-4 in. 1., slender, densely clothed
with spreading scales like those of the base ; barren f r . 6-9 in. 1., 1 - l j in. hr., the
point acute, the lower paid narrowed gradually ; texture thin and flaccid ; both
sides with scattered scales like those of the stem, and the edge u sua lly densely
ciliated ; veins distant, usua lly once forked, clubbed at the point and not
reaching the edge ; fertile f r . much smaller th an the other.—Elk. Sp. 5. p . 225.
H k . S; Gr. t. 95.
Hab. Mexico and Cuba to Peru.—A plant gathered by Barter at Sierra Leone is like
this, but more robust and more scaly. A.undulatum, Willd., Hk. Sp. 5. p. 212, is evidently
a form. I t is larger and thinner than the type, with main veins two lines apart. A. seto-
sum-, Liebm., is a small form, less scaly than usual, tmd A. Plumieri, Fée, Hk. Sp. 5. p. 226,
a thin variety, with the edge of the frond repand. This may be known from all its
neighbours, except cinnamomeum, by the scales, however dense, being uniform, and not
at all flattened.
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