2 . D raba FalJclandica, Hook. fil. ; cæspitosa, incano-pubescens, caule brevissimo foliis rosulatis obo-
vato-spatliulatis obtusis integerrimis, dense vestito, pedunculis plurimis robustis breiduscuHs pedicellisque
patentim snbsteUato-pilosis, süiculis coiymbosis pediceUis te r longioribus eUiptico-oblongis utrinque subobtusis
in stylum non attenuatis, stylo brevi valido, valvis concaris steUatim pubescentibus, seminibus
plurimis parris, funiculis brevibus.
H a b . Falkland Islan d s; Lieut. Robinson, R .N .
Radix Ugnosa, descendens, ad apicem. fascicnlmn rosnlatum dense aggi'egatmn foliomm snbcoriaceorum gerens.
Folia ^ nnciaUa, pubescenti-liirsuta, subtus pilis steUatis conspersa. Pedunculi 1 ^ -2 unciales, validi, nudi v. ima
basi unifoliati. Siliculee 3 ^ lin. longæ, stigmate breri crasso tenninatæ.
Tbe most prominent cbaracters of tbis species are tbe densely leafy sbort stem, or more properly cluster of
abbreriated stems, -wliicb immediately surmounts tbe root ; tbe sbort stout scapes, with comparatively large corymbs
of pods ; tbe latter are obtuse at both ends, but not abmpt, and the seeds are smaU, placed close to tbe margins of
tbe vedves and tbe opposite series separated by a very broad dissepiment.
3. D rabafuniculosa, Hook. fil. ; glaberrima, caule breviusculo ramoso, ramis foliosis, foliis lineari-lanceolatis
interdum oppositis basique subconnatis margine argute ciliato-dentatis, scapis gracUibus ad apicem
paucifloris, pedicellis fructiferis brevibus, silicuRs linearibus utrinque obtusis, stigmate bilobo sessüi, valvis
planiusculis, seminibus plurimis oblongis, funiculis elongatis capillaceis. (Ta b . LX X XIX .)
Radix sublignosa. Caules plmies divisi, ramis imc. longis. Folla erecto-patentia, rigida, - i - i uncialia,
basi in petiolum subdilatata. Scapi 2-3 imc. longi, floriferi breves. Flores parvi, 3-5, breriter pedicellati, albidi,
inconspicui. Sepala ovata, obtusa. Petala calyce bis longiora, spathulata, ad apicem rotundata. Staminum fila-
mentis gracilibus. Ovarium oblongo-ovatum. Silicula foliis subæquilonga, linearis, valvis ter quaterve longioribus
qiiam latis, medio obscure uninerviis.
A veiy peculiar species and resembling tbe D. oligosperma. Hook., of Arctic America, most iu babit, and particularly
D. lactea, Adams, a native of Siberia, in tbe form and ciliation of the leaves ; it has no near ally on tbe
South American continent.
P late LXXXIX. Fig. 1, portion of a stem, with two leaves accidentally opposite and connate at the base;
f g . 2, a flower ; f g . 3, petal ; fig. 4, flower, -with sepals and petals removed ; f g . 5, a pod ; f g . 6, tbe same, ivitb one
valve removed ; f g . 7, a seed and its funiculus ; f g . 8, embryo :—all ?
4. PR ÎN G L FA ,
Petala nulla (Anders. MSS.). Staminum filamenta brevia, dilatata, edentula. Ovarium obovatum. Stylus siib-
elongatiis. Stigma capitatum. Semina plurima, biserialia, oblongo-cordata, in rostiaim breve producta; testa
crassa, subspongiosa, albida. Silicula oblonga, vahis convexis naricularibus, dissepimento nullo. Cotyledones
acciimbentes.—Genus nulli arcte, affine Eutremæ/om® seminum dissepimentoque retracto accedane, sed potius Hrabæ
indole siliculee et structura emhryonis relatum. Herba magnitudine varia, plerumque elata. Rhizoma elongatum, pro,
strata. Folia in capitulum magnum congesta. Pedunculi infra folia orti, erecti, foliosi. Siliculæ plurimæ majusculæ.
Pringlea et Diapborantbus, Anderson in Herb. Banks.
vaginantem dilatata, supeiiie patentia, obtusa, vix dentata, utrmque pube steUata tecta. Racemi unciales. Flores
magnitudine et colore D, aizoidis. Siliculæ 4 lin. longæ.
Species fres sequentes verisimiliter non hactenus descriptæ, sed exemplaria mala offenmt, nempe e coHec-
tione Lindeni n. 431, in Caraccas reperta, et n. 1341 Novæ Grenadæ (stirps mira) et e coU. Galeotti n. 466‘J e To-
lucca in Mexico aliata.
1 P k in g le a antàcoriiitica, Brown, M S S . m Herh. Bank s. (Ta b . XC.-XCI.)
(seu rUzoma) prostrate, longe repens. 2-3 pedaHs. crassa, diametro 1-2 n n c . teres. ^
sublignosa, sapore CochUarioe Armoeaoiæ, pteoipue versus basin flbras crassas drvrsas ramosas emrttens, ad apcem
fo lio rL c a p L um magnum scaposqne 1-2 elongatos gerens. FoUa imbricata. m eaprtulum.
magnitudine formaque. referens disposita, 8 -6 unc. longa. latissime obovato-spathulaTa. basi m pet.olnm la i m
attenuata, earnoso-coriacea, concava, margine integen-ima, ciliata, interdnm pubescentia mtus vasrbns oleo sn lti-
Essimo repletis percursa. Pedunculi infra foUa e rhizomate orti, ascendentes, 2-3-pcdales fohosi. snlcati.
tis intns spongiosi. foliis plnximis imbricatis late obovatis sessibbus tectr. Paconns fructffeiars elongatne,
6 une ad pedalem. e silicnlis perplnrimis dense congestis snbclavatus. Pedicelb clavati, erect,. SepaU oblonga,
obtnsa, dorso püosa. Petala nulla ! (Anderson MSS.). Stamina parva, filamentis dilatatis.^ - 1 unc, bngæ.
oblongo-laneeolatæ, v. breviter oblongæ. erectæ. pubescentes v. patentim pUosæ, pihs snnpherbns, ranns glabræ;
valvis coriaceis, dorso convexis, obsonre nninervüs; replo gracili, persistente; placentis bisenahbns, e drssepnnento
retracto fimgosis. S « perplurima, majuscula, 1 Hn. longa, snbimbricata. e fumcnlo valido arcnato pendu a.
ovato-eordata, snbeompressa, deorsum iu rostrum breve obtnsnm producta; testa crassa. spongiosa, albrda; cotyledonibus
aconmbentibus, radicula mediocri æqmlonga.
TMs is perhaps the most interesting plant proemed dming the whole of the voyage perfonned in the Antarctie
Seas, gi-oiving as it does upon an island the remotest of any from a continent, and yielding, besides this eseident,
only seventeen other flowering plants.
I am imable to point out any veiy close afiinity which this emions genns may have with others of the same
natmal famüy, and shall therefore confine myself to ennmerating its pecifliaiities, and how far these may be common
to others of the order to wbicli it belongs.
The lono- stout rhizoma is very simüar to the root of the Coehlearia Armoracia (Horse-radish), and not altogether
different from that of the common kaü or cabbage, which is however an annual plant, wMlst the root-stooks of
PrinyUa and of the Horse-radish are perennial. In the foim of the head of leaves, the resemblance to the
common cabbage (Brassica oUracea) is most striking, and so is the use both are put to ; but tins analogy cannot
be carried farther ; om garden esculent bears its flowers on a branching stem, that rises from amongst the leaves
and is a continuation of the axis of growth of the plant, and it is cMefly owing to a cheek in the development of
the parts connected with the infloreseenee, or a complete suppression of those parts, that the annual leaves are increased
in nmnber and assimie the densely capitate form; hero, on the other hand, the ammal flower-stalks spring
invariably from the base of the cluster of perennial leaves and are wholly independant of them, as occms in the
horse-radish, in various Brabas, in Arahu Macloviam, and in some other perennial Oruàferoe more frequently inhabitants
of cold climates. But it is in the parts of the inflorescence that the most important hotamcal chai-acters reside,
and by them the position of this plant must be determined in the natmal series. The flowers though care-
fidly sought, escaped my observation, owing to the lateness of tbe season of our aiTival. Broken sepals and small
stamens, with short düated filaments and oblong-lanceolate anthers, of a dark colom, were aU I could detect; the
stigma is peltate and quite entire.
The süicula accords in form with that of several Abjssineæ, to which group in De Candoüe’s an-angement
Pringlea must he referred. There is no marked difference, except size, between the valves in this genus and CocMearia ;
the septum. whoUy absent here, is fenestrate in 0. fenestrata, Br., a native of Arctic America, wliüst the clavate
peduncle, short style and broad peltate stigma, are very oharacteristio of other species of that genns. The presence
or absence of a dissepiment, at off times spurious in the order, and of wMch there is a partial suppression in a genns
usually proidded with a complete one, cannot be considered a character of the greatest importance though very
conspicuous ; nor do we in any case find its absence in Cruoiferoe with the more ordinary structme of seed-vessels to
indicate any atfimty between the plants thus characterized. In Coehlearia the septum is easüy separable into the two
plates of wMch it is composed, as observed by Brown, and close to the septum the origins of these plates aro remote, so