Thelymitra. | ORCHIDEZ. 669 
B. Macdonaldia. Colwmn-wing extending behind the anther but shorter than it 
and not hood-shaped, variously lobed or crenate or fimbriate. 
Tall, slender, 9-18in. high. Flowers 3-8, large, ?—-lin. 
diam., blue-purple .. BE Kt .. 5. LT. pulchella. 
Flexuous and wiry, 4-10in. _ high. Flowers 1-3, 4in. 
diam., flesh-coloured ai: se .. 6. 7. imberbdis. 
C. Biaurella. Colwmn-wing not extending behind the anther, but with 2 pro- 
minent erect lateral lobes. 
Flowers 3-6. Lateral lobes of the one eae exceeding 
the short broad anther é0 so le I BORO. 
Flowers 1-4. Lateral lobes of the column- wing not so 
long as the rather narrow anther we Hs .. 8 TZ. undflora. 
T. concinna and T. nervosa, Col. in Trans. N.Z. Inst. xx. (1888) 207, and 
T. fimbriata, |.c. xxii. (1890) 490, are unknown to me. 
1. T. ixioides, Swz. in Vet. Akad. Handl. Stockh. xxi. (1800) 
928, t.3.—Stem slender, 9-18in. high. Leaf rather long but shorter 
than the stem, narrow-linear, thick, channelled in front. Flowers 
2-8 or more in a raceme 2-6in. long, rather large, 2-1 in. diam. 
‘Sepals, petals, and lip broadly oblong or elliptic- oblong, obtuse or sub- 
acute. Column short, stout, not half as long as the perianth ; the 
broad wing continued behind the anther and “overtopping it, 3-lobed 
at the back and with a lateral lobe on each side at the front angle; 
lateral lobes the highest, pointing forwards and upwards, linear, 
tipped with a small dense tuft of cilia; the 3 intermediate lobes 
broader and shorter, truncate, denticulate or crenate, the middle 
one usually crested on the back. Anther rather narrow, pointed, 
much longer than the rostellum.—Hook. f. Fl. Tasm. ii. ia be 1OBBe 
Benth. Fl. Austral. vi. 317; Fitzgerald, Austral. Orchid. ii. pt. 3; 
Berggr. in Minneskr. Fisiog. Sallsk. Lund. (1877) 22. 
Norra Isuanp: Auckland — Kaitaia, R. H. Matthews! Whangaroa, 
Petrie! Bay of Islands, Berggren; Te Aroha and Rotorua, Petrie! (specimens 
‘not in a fit state for accurate determination, but apparently the same). Sep- 
tember—November. Also in Australia. 
2. T. longifolia, Forst. Char. Gen. 98, t. 49.—Very variable in 
‘size and degree of robustness, stout or slender, 3-18in. high. ‘Leaf 
short or long, often overtopping the flowers in short-stemmed speci- 
mens, narrow-linear or linear-lanceolate, varying in breadth from 
4 to2 in. or even more, flat or involute, thick and coriaceous or fleshy, 
grooved and nerved. Flowers 2-16 in a raceme 1-6in. long or 
sometimes solitary, variable in size, 3-2in. diam., colour varying 
from white to pink or blue. Sepals and petals oblong-ovate or 
ovate-lanceolate, acute or acuminate; lip usually broader and more 
obtuse. Column short, stout; the wing continued behind the 
anther and much longer than it, 3-lobed; the middle lobe the 
highest, broad, rounded, hood-shaped and projecting forwards over 
the anther, emarginate or shallowly 2-lobed, margins smooth, 
