Imear lobes o f the upper cauliiie leaves ; the latter character is shared by the radical leaves o f the var. tenuifolia
Even the diflereut Tasmanian varieties may aU be tomid amongst our Entopean and Aretie forms,
5 C a r d a m in e h i r s u t a (L .); minor, glabra v, puberula, foliis radicalibus pinnatisectis segmentis
petroMatis m te g n s lobatisve rotundatis cordatis oblongisve , floribus pm-vis, siliquis acntiuscnlis obtusisve.
ar. o ; erecta v. decumbens, foliolis p etiolu latis subrotundis mucronatis, floribus parvis, siliquis erectis
ob tu sis.— Ä A n t. ii. 2 3 2 ; M . S . Z ea l. i. 1 3 . (Gu n u , 7 7 9 , 7 8 0 .)
Aar. ß . h e te r o fh y lU ; glabra, foK s radicalibus in teg ris cordatis cmteris pinnatisectis segmentis ovato-
cordatis termiiiali máximo, sü iq u is gracillimis obtnsis, stigm ate se ssili, floribus majusculis sæpe purpureis,
p e tabs hn ean -sp ath n latis.— C. heterophjUa, Hook. Comp. B o t. M a y . i. 2 7 3 , l e . P L t. 5 8 , B o t. Pourn. ii. 4 0 4
( 0 m m , 4 4 6 , 7 8 0 .)
A'ar. 7 . in te rm e d ia ; caule debüi subradicante, foliis subradicalibus lo n g e p e tiolatis pinnatisectis s e »
m entis p e tiolulatis oblongis, floribus mediocribus albis, petalis obovato-spatliulatis, süiquis gracilibus in sty lum
attenuatis.— C. intermedia. Hook. I c . P I . t. 2 5 8 , B o t. Pourn. ii. 4 0 4 . (Gunn, 4 4 6 ?)
Var. S. d e b ilis ; caulibus radicantlbus gracibbus decumbentibns flaccidis, süiquis gracffibus subcorym-
bosis apice atten u atis, floribus m in im is.— C. debilis, F o rst. P ro d r.
A ar. 6. g t a d a l ü ; caulibus brevibus foliisque suboarnosis, floribus majusculis albis, siliquis latiusculis
obtusis, stigmate se ssili.— C. glaoiabs, B C . S y st. ii. 2 0 4 , P ro d r . i. 1 6 3 . (Gunn, 7 8 1 , 1 0 2 4 .)
H i « , Throughout th e Island, abundant in many locab lie s, from the sea-sbore to 4 0 0 0 fe e t elevation.
— (FI. at ail seasons.) {v. v.)
D i s t m b . S outh-eastern and AAestern Austraba, N ew Zealand, Antarctic Islands ; abundant tlironghout
Europe, N o r th America, in th e h ü ly r egions o f tb e tropics, and in the Pacific Islands.
There are no limits to the variations o f this protean plant; I have studied it iu a thousaud forms from all ■
parts o t the globe, and vainly endeavoured to distinguish species or varieties that could be defined with tolerable
precision. As with tbe case o f aü plants that are found in many climates, it displays eitraordinarv powers of
v ar ju n g in ea ch ; and when the wide differences between the climates o f England and Tasmama are'considered
the wonder is, not that different forms o t the same speeies should inhabit both eonntries, bnt that exactly the'
same forms should occur in each. The most remarkable and only tangible differences amongst the Tasmanian
specimens are the comparative breadth o t the pod and length ot the style ; tor those o f habit, sizes o f the fiowers
form and cutting o f the leaves, aud niimber of the leaflets, etc., afford no characters at aU. These differences in
tbe pods are so great, that I have often felt inclined to class several o f the varieties with C. p -a ta isis, especiaUy as
coloured flowers are common amongst them; bnt on the whole I think it better to leave them as they are thonri,
m a very nnsalistaetory state, and to recommend the subject to the attention o t the colonial botanist; mranwlifle
an the smafler foims o f Tasmanian Cardamine may be provisionaDy referred to 0. hirsuta. I find am’onvst European
specimens o f O. hirsuta, forms that are in every respect similar to the Tasmanian ones.
G en. I I . B A R B A R E A , I .
S ep a la 4 , æqnaba, suberecta. P e ta la nngmculata, lamina explanata. S tam in a edentula. S iliqu a
linearis, compresso-tetragona ; valvis n ervosis, concavis, subcariiiatis. Semina uniseriata; eoiy le ion ibu s ac-
cnmbentibus.— Herbæ ereetee, f o l io s a ; fobis ly ra to -p in n a tifid is integrisne ; ü o ú h m ß a v is .
The few known species o t this genus are confined to the north temperate and colder regions o f the globe
except the following, which is common to Australia and New Zealand. One o f the English species has been used
as a pot-herb, and is called AVinter Cress; it has a nauseous, acrid taste.— Stout, erect, leafy herbs, with broadly
lyrate-pmnahfid leaves and angular stems, and racemes of yeUow flowers. P o d , erect, linear, bluntly four-anglcd.
with a short stout style. Valves strongly veined, obscm-ely keeled. Seeds numerons, in two rows in each cell.
(Name from a European species having been dedicated to St. Barbara)
1. Barbarea australis (Hook. fli. E l. N . Zeal. i. 1 4 ) ; fobis iuferioribus Ijrato-pinnatifidis, lobis
laterabbus obovato-oblongis terminab ovato sinuato, snperioribns integr is lobatis pinnatipartitisve, floribus
majusculis, siliquis erecto-patentibus linearibus compresso-tetragonis pedicello te r eti elon g a te latioribus, stylo
brevi recto. (Gunn, 6 4 3 , 6 4 3 ?)
H a b . M o ist or marshy places in the central districts, as at Marlborongb, Middlesex P la in s, and St.
Patrick's River, common ; also found near Launc eston. {& « » . )— (El. Deo.)
D i s t r i b . N ew Zealand.
I have m the ‘ New Zealand Flora’ pointed ont the differences between this and its veiy near aUy B .præcox
o f Europe, which consist in the larger flower, broader pod, and more slender pecUcel. Mr. Gunn found it originally
in the wildest and most inaccessible parts o f the Island, which, coupled with the fact o f its not frequenting
inhabited places, is good evidence of its being a native, a fact which its comparatively tiifling specific difference Irorn
so common an English weed as B . præcox would otherwise have led me to doubt.—A tall, robust herb, eighteen
inches to two feet high, with a simple, or spaiingly branched, erect, leafy stem. lea v e s extremely variable in size
and division, the Last lobe of the radical ones usually very large and sinuate, 2 - 3 inches long. Rods inch Ion«-,
1 - l i line broad, their pedicels 2 lines long.
Gen. I I I . N A S T U R T IU M , B r .
Sep a la 4 , pateutia. P e ta la 4 , limbo p atente . S tam in a edentula. S iliq u a teretiuscula, abbreviata,
curvata v. decliuata. S tigm a subbilobum. Semina irregulariter biseriata, emarginata; co ty led on ibm ac-
cumbentibus.
Erect or decumbent herbs, generally pungent to the tongue ; natives o f various temperate and some tropical
parts of the world, and including the common Water Cress.—Aeaaes usually pinnatifid. Flowers yellow, rarely
white. Sepals spreading. Rods short, cm-ved, inflated, with a short style; valves membranous; seerfs iu two rows.
Cotyledons accumhcnt. (Name said to h e from naaus tortus, a twisted nose ; in allusion to some o f the species causing
sneezing.) °
1. Nasturtium terrestre (Br. in Hort. Kew. ed. 2 . iv . 1 10) ; subereeta, glabra v . püosa, foliis integr is
pimiati-lobatisve auricnlatis lob is conflueiitibus sinuato-dentatis, petabs flavis calycem æquantibus, siliquis
brevibus turgidis oblique oblongis pedic ellis gracüibus æqnilongis in stylum brevem abrupte angustatis,
seminibus plurimis.— Dnyf. B o t. t. 1 7 4 7 ; M . N . Z eal. i. 1 4 . N . palustre, B C . S y s t. ii. 191.
Var. sem ip in n a tifd um ; folus dentato-pinnatifidis.— N . semipiniiatifidum. Hook. .Pourn. B o t. i. 2 4 6 .
{Gunn, 7 4 .)
H a b . A bundant on wet banks o f S t. Patrick’s River, and on th e Derwent above N ew N'orfolk, where
flooded in winter, (rnnn.— (FI. N o v .)
D i s t r i b . F ound in th e Old W or ld from Sweden to th e Mediterranean, and in the N ew from the
coast o f the Arc tic Sea to M e x ic o ; also in India, extratropical South America, N ew Zealand, aud Tasmania.
The var. semipinnatifidum is found iu the neighbourhood o f Bu en os Ayres and in N ew Zealand.
A leafy, branching herb, ivith generally decumbent stems 6 -1 8 inches long. Leaves nsiinlly pinnately lobed
sometimes eiitke, at others sinuate, or only tootlied ; lobes toothed. Petals small, yellow. Pods short, tiirgiil!
obliquely ciuwed.— Brown states that the European N . amphibium is a native of Australia.
Gen. IV . STENOPET /VLUM, B r .
S ep a la 4 , erecta, basi fere æqualia. P e ta la 4 , unguiculata ; lamina elongata, lineari, sæpe torta. Stamiua
VOL. I.