base, about a nail in length, furnished with 10, elevated
ribs, and five rather long,' linear-lanceolate, pointed, upright,
nearly equal teeth. Corolla gamopetalous, twice the
length of the calyx. Wings oblong, spathulate, retuse, much
longer than the mucronulate keel; both of a pale yellow,
or white. Yexillmi oblong, emarginate, lilac, much longer
than the wings. Filaments 10, white, with one separate.
Anthers incumbent, bilocular, yellow. Style compressed,
smooth. Stigma rather broad, flat, emarginate, and pruinose.
This elegant little Trefoil is not unlike our native T. suh-
terraneum, but is altogether a plant of larger dimensions,
and is, moreover, perennial. The heads are few-flowered in
both species, and the calyx and corolla comparatively long.
Buxbaum’s fig. 2, referred by most authors to the present,
appears, from its smaller flowers, and obcordate leaflets, rather
to belong to subterraneum. The name uniflorum is by no
means a happy one, the flowers being mostly in threes.
The plant is quite hardy, and admirably suited for a
rock-work, where its numerous large blossoms, issuing from
the bosom of its bright green leaves, make a showy appearance
during the month of May.
It thrives best in a light sandy soil, and is increased by
parting the roots.
Our drawing was taken at the Botanic Garden, Chelsea,
in May last.
The generic name is compounded of Ires, three, and folium,
a leaf, and is but little altered in the English version.
D. Don Mss.
C O R R E C T IO N S I N T H E TW O P R E C E D IN G N U M B E R S .
Fol. 192, line 14, for exteriorum, read interiorum.
Fol. 195, line 5, for exteriorum, read interiorum.
SYSTEMATICAL INDEX
VOLUME II.
S E C O N D S E R I E S .
Aquilegia Garnieriana .........
Helleborus lividus • • ..........
Helleborus niger, m r . vernalis ..
Helleborus purpurascens
Thalictrum anemonoides ----
Sanguinaria grandiflora -----
Dactylicapnos thalictrifolia
Sarracenia minor ............
Berberis nervosa ........... .
Hespei is speciosa ............
Tropæolum peregrinum
Viola suavis .......................
Dianthus aggregatus ■ • ■ • •
Drypis spinosa .........................
Claytonia virginica .....................
Philadelphus hirsutus H "
F rancoa appendiculata ............
F rancoa sonchifolia ------------
Ribes sanguineum ....................
Ribes speciosum .....................
Oxalis crena ta .................................
Malva miniata f -
Blakia pulchella J
OE n o th e ra anisoloba ................
OE n o th e ra concinna ................
Bartonia albescens ....................
Loasa alba ’ ^
Loasa nitida ; ............. „
C am e llia jap on ica ,iia r.Sw ee tian a . . i s í
Rosa indica, rar. Sm ithii «
Lupinus Marshallianus ............
Orobus luteus .................
"Wisteria frutescens -----
Androsace carinata ...........
P rim u la ciliata ................
Soldanella alpina ...........
Calceolaria Atkinsiana ................
Calceolaria Martineauæ -----
Calceolaria pendula
Calceolaria p u rpurea, m r. elegans
Calceolaria Wheeleri ...........
Leucocarpus alatus ................
Nicotiana longiflora _ ...........
Nierembergia gracilis ...........
Nierembergia phoenicea -----
Salpiglossis Barclayana ............
Solanum l uncinatum ................
Colvolvulus Scammònia
115
104
106
123
110
162
155
199
130
124
196
172
193
112
173
F.
181
114
148
128
154
137
117
108
160
180
174
175
184
167
156
159 185
116
153 102
101
145
143
164
113
107
136
191
179
118
188
132
121
144
129 111
141
194
141
176
146
178
165
152
, 187
, 189
, 131
Calophanes oblongifolia
P h lo x corymbosa
Rhododendron album ...........
Rhododendron indicum, var. ignescens
Rhododendron indicum, var. Smithii
Rhododendron ornatum . . . .
Rhododendron pulchrum . . . .
Adenophora intermedia . . . •
Adenophora verticillata ...............
Lobelia colorata
Lobelia speciosa
Bellium bellidioides • ■
Liatris odoratissima . ■ •
Malesherbia coronata
Tacsonia pinnatistipula
Alstroemeria hæmantha
Lilium Catesbæi . . . •
Tulipa Bonorotiana . •
Tulipa maleolens_ ...............
Tulipa oculus solis • • ■
.Ajax cernuus ...............
Ajax albicans ..............
Ajax pumilus ..............
Corbularia serotina
Ganymedes concolor
Habranthus roseus • • •
Helena gracilis • ■ •
Hermione aperticorona
Hermione tereticaulis
Hermione Trewiana
Narcissus recurvus
Narcissus stellàris • •
Ph y cella ignea, var. pulchra
Sprekelia formosissima
Lachenalia mutabilis
Ornithogalum fimbriatum
Scilla præcox . . . ■
Crocus lacteus ...............
Gladiolus cochleatus
Gladiolus pudibundus
Hermodactylus longifolius
Homeria collina . • •
Iris amæna .....................
Iris biflora ..................
Iris biglumis ..................
Iris reticulata . . . .
Sparaxis lineata
2 D