h |S
usque pinnatifidis v. 3 -5 -p a ititis lacimis omnibus linearibus obtusis marginibus recunds supra glaberrimis
nitidis subtus sericeisj pedunculis villosis subscapiformibus parce foliosis; floribus plerisque in capitulum
globosum congestis, calyce liirsnto, petalis fusco-purpureis dorso sericeis, stamiuibus 2 filamentis brevibus,
stigmate depresso fimbriato, ñ u c tu tetragono glabriusculo supra medium spinis suberectis apice glochidiatis
basi dilatatis armato.
H a b . Strait of Magalhaens ; P o rt Gregory ; Capt. King.
Radix lignosa, descendens. Caules 2-3-uuciales, vaginis pilosis folionun tecti. Folia 3—5 imc. longa, petiolis
gracilibus subsericeis ; foliolis perplurimis, magnitudine variis, 2 liu. ad J unc. longis. Pedunculi pedales, validi,
eredi, foliis 2-3 abbre-viatis instructi. Flores parvi.
This species is so nearly allied in general habit to some states of A. pinnatifida, that I hesitated before separating
them. That plant I find to differ in haiing the surface of the fruit invariably ai’med with many and much
larger spines. The A . pinnatifida also is a native of Patagonia, having been found by Mr. Darwin at Port Desire, in
fruit onlv, and his specimens are of a much smaller size than those from Cliili, but not otherwise distinct. The present
species connects the Eiiacana with the Ancistrum gi-oup, and is, too, the most nearly allied to the following,
which, possessing no spines, setæ, or glochidiæ whatever, will not rank under either of those subgenera.
4 . A cæ n a lucida, Y ah l; laxe pilosa, caule elongato decumbente ramoso, ramis plurimis ascendentibus
foliosis, foliolis parvis 5 -9-partitis laciniis inæqualibus lineari-oblongis obtusis margimbus revolutis supra
glaberrimis subtus laxe patentim pilosis uninerviis, pedunculis scapiformibus breviusculis validis, floribus
plerisque in capitulum globosum aggregatis paucis solitariis fasciculatisve, bracteolis scariosis cüiatis, petalis
dorso barbatis, staminibus plerumque 2 filamentis brevibus, stigmate depresso patellæfoi-mi, fructu tetragono
ad ángulos superne tuberculato, spinis glocbidiisve nullis. A. lucida, VaU, Enum. vol. i. p. 296. Lamarck,
Illu st. vol. i. t. 22. f. 3. Encycl. vol. i. p. 346. Hart. Kew. vol. i. p. 67. BC. Frodr. vol. ii. p. 593.
(Tab. XCIY.)
H ab. Falkland Islan d s; very abundant on rocks near the sea.
Caules elongati, 6 unc. ad pedalem, prostrati, curvati, crassitie pennæ anserinæ, vestigiis petiolorum delapsorum
vaginati, apicibus ascendentibus. Folia ad apices ramorum couferta, 1-2-poUicaria ; petioli basi late vaginantes,
vaginæ margine ciliata; foliola pro genere minima, 1 Hn. longa, paUide \-iridia, ad basin in lacinias 3-4 fissa, plus
minusve patentim pubescentia, apicibus interdiun penicillatis. Fedunculi 3 unc. longi. Capitula villosa, i unc.
diametro. Flores 1 lin. longi. Fructus obovatus, snrsum pilosus, angulis prominentibus.
A plant long known in cultivation in England, but very imperfectly described. I am not aware by whom it
was first detected. Yahl describes it from a specimen in the Jussieuan herbarium, and states that he saw it growing
in Dr. Pitcairn’s garden near London, where the fruit was unarmed ; this is always the case in native specimens,
though Yahl asserts the contrary. It is not improbable that some of the varieties of iriflda, from Patagonia,
may have been mistaken for this.
P l a t e XCIY. Fig. 1, bracteola ; fig. 2, flower ; f g . 3, the same, more advanced ; f g . 4, longitudinal section
of the same, showing the carpel, enclosed in the calyx ; fig. 5, section of ripe fruit and carpel, showing the suspended
seed ; fig. 6, side, and fig. 1, front view of seed ; fig. 8, erabrjo removed from seed :—all magnified.
5. A c æ n a (Ancistrum) laevigata. Ait. ; glabriuscula, caule decumbente ramoso, ramis ascendentibus foliosis,
foliolis suboppositis oblongo-obovatis obtusis basi obliquis superne grosse crenato-dentatis coriaceis supra
glaberrimis subtus parce püosis, pedúnculo scapiformi glaberrimo v. pubescente nudo v. basi folioso superne
interdum diviso, floribus plerisque capitatis, calycibus glabris, staminibus 2 filamentis brevibus antheris ro-
I
tundatis, stigmate brevi dilatato fimbriato, fructu glabemmo oblongo-cimeiforme compresso spinis 4 suberectis
inæquilongis armato, A, lævigata, Hort. Kew. voi, i, p, 6 8 , BC. Prodr. voi, ri, p, 592, A, Magellanica,
Hook, et Arn. in Bot. Misceli, voi, iii, p, 308, quoad exemplaria hortensia. A, Magellanica, /3, Larnk.
quoad Herb. Mus. B r it.
H ab, Strait of Magalhaens ; Commerson. Hermite Island ; J .B .H . Falkland Islands ; B r . L g a ll,
Mr. Chartres, J . B . H.
Species A. ascendenti habitu similHma, sed glabrior, foliis coriaceis, formaque stigmatis staminum fructusque
diversissima,
A species so closely resembling A. ascendens that, even in them native place, the Falkland Islands, where
both grow together, it is difficult to discriminate them without examination, when the present may be distinguisbed
particularly by the more coriaceous and less hairy leaflets, the spikes more elongated, and bearing remote
glomeruli ot flowers, or sometimes branching, by the smooth calyx, broader and shorter stigma, and the form of the
ripe fruit. This, with all the preceding species, and the following, differ in the form of the stigma from the
remainder, in which that organ is much more elongated, and in w'hich there is less tendency in the peduncles to bear
flowers anywhere but at the apex,
6 , A cæna Magellanica, T a b i; abortu dioica?, caule breviusculo subramoso ascendente, foliis subcoriaceis
parce pilosis subtus subsericeis, foliolis 3 -7 -jugis late obovato-oblongis obtusis sessilibus superioribus
decurrentibus gi'osse et obtuse crenato-serratis interdum 3-5-fidis, pedicello scapiformi nudo v, rarius
unifobato pubescente, capitula parva post antbesin dilatata, calyce petabsque late oblongo-ovatis pilosis,
staminibus elongatis filamentis gracibbus, antheris majuscubs didymis, stylo subelongato latiuscnlo piumoso,
A, MageUanica, Tahl, Enum. vol, i, p, 207, [mu Hook, et Arn. in Bot. MisceU). Lam. Illu st. t, 22, f, 2,
Suppl. vol, i, p, 346, BC. Prodr. vol, b, p, 593,
H,4B, Strait of Magalliaens ; Commerson. Cape Gregory, Capt. King.
Very nearly aUied to A. laevigata, and perhaps not speciflcafly distmct ; the capitula are smaller and never
divided, the styles rather longer, the pedmicles mpre haby, and the whole plant less branched than in that species.
The hairy peduncles and broad styles at once distinguisb this from A. ascendens.
7, A cæna (Ancistrum) ovalifolia, E, et P, ; sericeo-pubescens, caule longe repente ramoso, ramis suberectis
fobosis, foliobs 3 -4-jugis ovab-oblongis obtusis ad basin usque crenato-serratis supra glabriusculis
subtus lifrsutis sericeisve, peduncubs scapiformibus pubescentibus fere nudis, capitubs globosis, floribus
minimis, calyce pilis elongatis subrigidis dense obtecto, petabs obovato-spathulatis dorso sericeis, stammibus
plerumque 2 filamentis gracibbus, antberis parvis didymis, stylo gracili, stigmate elongato unilaterali piumoso,
fructibus villosis setis 2 -3 rarius 4 gracilibus apice glocliidiatis armato. A, ovalifolia, B u iz et Pavou,
El. P e rm , vol, i, p, 67, t, 103, f, c. Yahl, E m m . vol, i, p, 295, DC. Prodr. voi, ii, p, 592, Ancistrum
repens, Ventenat, Hort. Cels, t, 5, Lam. Enegcl. Méth. voi, i, p, 345,
H ab, South Club, and througbout Ihiegia ; Banks and Solander, ^ e.
Ab A. ascendente, cui proxima, differt floribus paiwis, calycibus dense vestitis, antheris minimis didymis, setis
fructus duobus tribnsve, ct foliobs omnibus oblongis regiilariter creiiato-seiTatis,
Ncaily allied to A. ascendens, but in the flower and fruit totally distinct, as I have proved from the examination
of many specimens, gathered at various positions between the Equator itself, where it inliabits a level of 13,000
feet, and Cape Horn,
Difficult of determination as the Acmm at first sight appear, I feel quite satisfied that they are possessed of
ample though overlooked specific characters. The present species has more fully convinced me of this than any of