—"= 
De 
728 GENTIANACEAE. | [Gentiana. 
oblong, obtuse. Corolla narrow-campanulate, divided 3-way down ; lobes 
oblong or oblong-obovate, rounded at the tip. Ovary linear-oblong, sessile. 
—Ill. N.Z. Fl. ii (1914) t. 188. G. pleurogynoides var. umbellata 7’. Kirk 
m Trans. N.Z. Inst. xxvii (1895) 335. 
. 5 ri b- 147 .,° + a! ‘ Ail J 
CHATHAM Istanps: Abundant in wet places, H. H. Travers! Miss Seddon! F. A. D. 
Cox and Cockayne ! 
I consider this to be a very distinct species, to be recognized without any difficulty 
by the peculiar habit, small and broad thin leaves, and small umbellate flowers, with 
a deeply divided calyx and corolla. A specimen collected by Mr. Buchanan at the 
Lindis Pass, Otago, and another gathered by Professor H. B. Kirk on D’Urville Island 
may belong to the same species, but they are far more copiously branched and have 
much longer leaves, and are best held over until more complete material is obtained. 
6. G. tenuifolia Petrie in Trans. N.Z. Inst. xlv (1913) 270.—Apparently | 
annual; stems smooth, slender, terete, simple or more generally branched 
at the base, 9-18 in. high, generally marked on each side with a narrow ridge 
decurrent from the base of the leaves. Radical leaves many at the base 
of the stem, often rosulate, variable in size, 1-44 in. long, obovate-oblong 
to obovate-spathulate, gradually narrowed at the base into a short petiole, 
rounded at the tip, or rarely subacute, thin and membranous, entire, quite 
glabrous; veins reticulated. Cauline leaves in 2-5 remote pairs. Flowers 
rather small, $$ in. long, white, arranged in many-flowered involucrate 
umbels terminating the stems or main branches. Pedicels about 4 in. 
long. Calyx cut down to about 3-way to the base; lobes linear-subulate, 
acute. Corolla rather longer than the calyx; lobes divided about e-way 
down. 
Souri Istanp: Nelson—Boundary Creek and Lyell River, Buller Vallev, W. 
Townson ! Gordon’s Nob, Petrie / 7. F.C. : Hanmer Plains, C. 2. Christensen ! Petrie / 
Marlborough—Mount Blairich, H. J. Matthews / Canterbury— Waimakariri Gorge, 
Cockayne ! Lake Pearson, A. Wall / Otago—Near Queenstown, Petrie! Lake Hau- 
roko, Crosby Smith. 1000-4000 ft. January—March. 
This appears to be a distinct species, easily recognized by the tall slender habit, 
large membranous leaves, and involuerate umbels of small white flowers. 
7. G, tereticaulis Petrie in Trans. N.Z. Inst. xlix (1917) 51. — Annual : 
stem slender, simple, erect, smooth and terete, 8-l14in. high. Radical 
leaves few or rarely many, variable in size, ¢—2 in. long, ovate or oblong- 
ovate, gradually narrowed at the base into a flattened petiole equalling or 
exceeding the blade, quite glabrous, thin and membranous, entire, acute 
or subacute; veins reticulated; margins flat. Cauline leaves in 2-3 
distant pairs, 4-1 in. long, the uppermost sessile, the lowermost shortly 
petiolate, usually acute. Flowers arranged in a terminal 4—8-flowered 
umbel, sometimes furnished with a few smaller umbels or solitary flowers 
Springing from the upper cauline leaves. Peduncles twice as long as the 
flowers, smooth, slender, erect. Flowers about tin. long, white; calyx 
about 4 as long as the corolla, cut down for about = its length into 4 
subulate-lanceolate lobes. Corolla divided for about i of its length into 
4 rounded lobes. Stamens exceeding the calyx. Mature pistil exserted 
beyond the corolla. 
SoutH IsLtanp : Otago— Grassy slopes near Lake Harris, Routeburn Valley, Petrie / 
I have seen no specimens except those gathered by Mr. Petrie. He states that it 
‘is intermediate between G. tenuifolia and (@. corymbifera, 
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