330 BURMANNIACEAE. [| Bagnisia. 
for the size of the plant, }-}in. long, about fin. broad, bright rose-pink 
when fresh. Perianth campanulate-lanterniform ; tube obovate-oblong, 
distinctly 6-12-costate; outer perianth-segments smaller, free, linear or 
oblong, at first erect but ultimately spreading, sometimes abruptly recurved. 
Inner segments almost twice the length of the outer, linear-spathulate to 
obovate-oblong, connate or connivent at the tip, gaping at the middle, 
keeled on the back, with the keel produced upwards into a subulate point. 
Stamens 6, affixed to the throat of the perianth-tube, shortly exserted, 
abruptly deflexed within the tube; filaments very short, free; anther- 
connectives much enlarged and expanded, connate into a membranous 
tube which is bilamellate at the apex; anther-cells small, distinct, placed 
towards the base of the tube formed by the connectives. Ovary inferior, 
broadly obovoid, I-celled; placentas 3, free; ovules very numerous ; 
style short, thick; stigma 3-lobed, the lobes broad, almost quadrate, 
concave, truncate at the tip. Fruit unknown.—Cheesem. Illus. N.Z. Fl. ii 
(1914) t.191a. Thismia Hillii Pferffer in Bot: Gazette, lvii (1914) 122. 
NortH Istanp: Forests at Opepe, near Lake Taupo, on mounds of humus at the 
base of Podocarpus dacrydioides and other trees, alt. 2000 ft., H. Hill! A. Hamilton f 
PG, January. werl? Cima, Ot Ternrgartte. 
A very remarkable little plant. It is closely allied to the Tasmanian B. Rodwayi, 
but a comparison between Mr. Rodway’s plate given in his “Tasmanian Flora ’’ and 
Miss Smith’s careful drawing of B. Hillit in my “Illustrations of the New Zealand 
Flora ’’ (t. 191) will show stru@tural differences of considerable importance. 
Miss Pfeiffer, in a valuable paper printed in the Botanical Gazette (vol. xlvii, p. 122), 
suggests that Bagnisia, with several allied genera, should be merged with Thismia. 
This step appears to me to be retrograde, and not at all in keeping with the work done 
of late years in the family by Warming, Urban, and Engler. 
Lah. troy. Wie: See WOE SB" o%. Sst 
Family XXIII. ORCHIDACEAE. 
Herbs, either terrestrial and tuberous-rooted, with annual herbaceous 
stems, or epiphytes with creeping rhizomes emitting fibrous or fleshy 
roots and bearing simple or branched leafy stems often thickened into 
pseudobulbs. Flowers hermaphrodite, solitary or in spikes or racemes 
or panicles, often large and showy. Perianth superior, irregular, of 6 free 
or more or less combined segments, in 2 series; the 3 outer (sepals) all 
similar or the dorsal one larger and more concave than the 2 lateral 
which are always alike; the 3 inner (petals) always dissimilar (except im 
Thelymitra), the 2 lateral alike, but the third (calied the lip, or labellum) 
usually exceedingly different, often spurred, lobed, fringed, or furnished 
with glands or other appendages. Stamens and style confluent into a 
fleshy variously shaped central body facing the lip, called the column ; 
anther usually solitary (2 in Cypripedium), placed on the front, top, or 
back of the column, and either free or adnate to it, persistent or deciduous, 
usually 2-celled; pollen granular or waxy, usually cohering in each cell 
into 1, 2, or 4 pairs of pollen-masses (pollinza), which are either free or 
attached, directly or by a caudicle, to a gland on the apex of the stigma 
(rostellum). .Ovary inferior, 1l-celled; ovules numerous, on 3 parietal 
placentas ; stigma a viscid depression towards the top or on the front 
of the column, below the anther, facing the lip, upper margin often pro- 
duced into a beak or peint called the rostellum. Fruit a 1-celled 3-valved 
capsule ; seeds numerous, very minute; testa loose, reticulate; albumen 
wanting ; embryo solid, fleshy. 
v 
