P. S. While this sheet was passing through the Press I
discovered that the name Tulasnea was preoccupied. I have
therefore taken the liberty of substituting that of N. A.
Dalzell, Esq., M. A., of the Bombay Medical Establishment,
a recent but most promising addition to the Indian Botanical
corps, whose papers in Hooker’s Botanical Journal give
assurance of his attaining the highest excellence in this, the
branch of Science to which he is devoting his attention. I
beg the favor of the reader changing the name on the plate.
1919-1. D alzellia Z eylanica (R. W., Tristicha
Zeylanica, Gard., Lawia Zeylanica, Tul.) rhizoma
broadly expanding, thick, hardish: some of the leaves
rosulate linear, short; some scattered, shortly ovate,
acute, papilheform: flowers numerous, scattered, ris- [
• 1919-4. D alzellia pedunculosa (R. W.), rhizoma
spreading, margins free, lobed, gemmiferous: leaves,
all aggregated and united to form the sheath, short
bristle-like: peduncle 6-8 times the length of the
sheath, very slender; capsule ovoid, round, or scarcely
angled.
Salset, Bombay, Law.
Though so like in character to the last, I believe
this is a perfectly distinct species.
1920. D alzellia ramosissima (R. W.), rhizoma
very long, slender, much branched, with numerous
lateral floriferous branchlets, with one or several
ing from a broad longish sheath, externally beset on ®°yers> aggregated towards^ the ap ex : each flower
all sides with prominent papillae: pedicel longish. Tul. p11^ usually accompanied with two slender, filiform,
Rivers in Ceylon. On smooth gneiss rocks in the
leafy ramuli: leaves subulate, imbricating, exterior
Mahawalle Gunga, near Peradenia.
ones short obtuse; middle ones longer, acute; interior
Fronds sub-orbicular, horizontal, irregularly-lobed:
6 or 8 longest, ligulate, connate at the base, forming
leaves fascicled, small, linear, obtuse; flowers spring- the short sheath:. filaments at - first ----- very ------ short,, afterbed.
-----
ing from the upper surface of the fronds: spathe war(*s elongating. Anthers oblong, somewhat sagit-
conical, fleshy, echinate, open above: capsule 9-rib- ta*e base, cells distinct: styles filiform, abou
Gard.
1919-2. Dalzellia foliosa (R. W.), rhizoma
spreading, lichen-like, lobed and free on the margin:
buds for the most part on the free margins: leaves
numerous, fascicled round the base of the pedicel,
long, linear, pointed: no sheath: pedicel two or
three times the length of the leaves.
Rivers, Salset near Bombay, Law.
.......... ... ---------------- ,about
the length of the ovary, hispid.
Rivers in Malabar near Cochin, Rev. E. Johnson.
This is a remarkable species on account of the great
size to which it grows, some of my specimens being
at least 18 inches long.
Two points noticed above have either been overlooked
by the draftsman, or they are not constant,
and only met with in older plants than the specimen
selected for representation: I allude to the short
lateral floriferous branchlets each bearing from 2 or 3
• H H ,. .. . jiaiuoioij. uuiiiciuuo uitiuuuiciis tjciuu. nearing trom z or a
Mail a Y,er{ distinct species and most easily to 6-8 sessile flowers, congested on their extremities.
recognized by its tufts of well-formed leaves, and no "" ” • ■ ’ - -
sheaths. The leaves under the microscope exhibit
very conspicuously the hexagonal cellular texture so
generally observable in monocotyledonous plants.
For the accuracy of the representation of the section
The other point overlooked, most probably from the
specimens used being too young, is the filiform ramuli
springing from near the base of the peduncles: these,
so far as I have yet observed, do not, in any case,
nfthp m ct aL™ “T exceed the length of the peduncle, are not thicker
fn Tf ? ? - the plate’ venture than a thread, and clothed then- whole length with
to vouch. I f correct, it is an anomaly m the order, very slender, longish, imbricating leaves. I t is cer-
1919-3. D alzellia L awii (R. W .), rhizoma spreading,
margins free, gemmiferous: leaves, surrounding
the sheath, few, short, broader th an those within,
somewhat lanceolate; those of th e sheath v e ry numerous,
short, needle-shaped, re c u rv e d : pedicels
tainly a very distinct species, but whether or not
these two points are merely occasionally present, or
are constant and have been overlooked by the artist,
is more than I can tell.
T risticha (Pet., T h .).
shortish: capsule ovoid, scarcely angled.
Salset near Bombay, Law.
This is very distinct from the preceding in the
character of its leaves and sheaths, and is about
H n n lM tinTI.£°“ *he V i e le”«th of 1M0-2. Tristicha m o r a (Gard, T.hjpnoidcs?
by the artist p ,m4 “ot l™iglit out Tul.), stem erect, ramous; leaves imbricating, elliptic
corrppf fnr for proportion is not very or elliptico-ovate, obtuse : pedicels axillary; spath
iects as seen^mfci^ti4 ™ ” atund -sta5 ’ af d -0I ob' deeP'y 2-3-l0bed; lobes orbicular:jecis as seen under the microscope is utterly wanting. —Gard capsule 9-ribbed.
n a u e S u ^ i t h e ” ,° r ‘° .41le H i vaU?W,e ™ I * This being an American plant is introduced simply
to be delimited6 T1?4™ S12ea of parts of the object to show by contrast the difference between the two
on the haYe now before me side by side genera. I t seems not improbable that species of the
three Bomba ™°pe sPecuf ens„°f 311 the American genus may yet be found in India. These
are6 about tKf P § jW # | °f 2 and 4 two genera mutually represent each other in their
twice as tiftJk 11 thf °f \ ?s neariy respective floras, Dalzellia being to the Indian what
two-thirds than t w l f fhf i p S S ° t F 0’ .3 1Sless by Tristicha is to the American branch of the order.
« f I feel it necessary And, curiously enough, the numbers are nearly the
vent the m n S f iS 'f i811*7 of ai'tlsfc s vision to pre- same in each country, Tulasne has enumerated 5
correct WJ lch sboulf b® especially species of Tristicha, and I have 5 of Dalzellia, to
forms of those iTW10 co“sult them. The which 2 have to be added, D. pidchella and D. Ionrelative
Ge n . Cha r . Perianth 3-parted, lobes imbricated
in estivation. Stamens 1; the rest of the character
as in Dalzellia.
s i L are r f to t o S e S ; 0"® Sh°™ ’ tlu> S ^ V ^ s p e c i e t™ n<>‘ ^ “ “ g“ US
PRINTED AT THE AMERICAN MISSION PRESS, MADRAS, JANUARY 1852.