( 357 .) 
LISTE'RA * 
Linnean Class and Order. GyNA'NDRiAf, Mona'ndria. 
Natural Order. Orchi'dea;, Linn. — Juss. Gen. PI. p. 64. — 
Sm. Gram, of Bot. p. 81. ; Engl. FI. v. iv. p. 3. — Lindl. Syn. p. 256 ; 
Introd. to Nat. Syst. of Bot. p. 262. — Rich, by Macgilliv. p. 412. — 
Loud. Hort. Brit, p.536. — Mack. FI. Hibern. p.274. — Macr. Man. 
Brit. Bot. p. 224. — Hook. Brit. FI. (4th ed.) p. 425. — Palmares ; 
order, Musales ; sect. Orchidin^e ; type, Orchidace^e ; Burn. 
Outl. of Bot. v. i. pp. 391 , 437, 458, & 461 . 
Gkn. Char. Perianthium + ( calyx Sf corolla ) (fig. 1.) superior ; 
Sepals 3, egg-shaped, concave, spreading, permanent ; Petals 2, 
spear-shaped, spreading, about as long as the sepals; Lip ( nectary , 
Sm.) without a spur, much longer than the petals, dependant, 
2-lobed ; slightly concave at the base within the sepals ; disk 
marked with a longitudinal central furrow, producing honey. 
Anther (see fig. 2, c.) oblong, parallel to the stigma, to which it is 
fixed behind by its base, of 2 close, parallel, strap-shaped cells, 
which deposit the powdery masses of pollen upon the upper lip 
(fig. 2, a.) of the stigma. Germen inversely egg-shaped, or round- 
ish, angular. Style ( column ) very short, cylindrical, not bordered. 
Stigma (see fig. 2, a Sf b.) in front, of 2, unequal, flat, parallel lips ; 
the lowermost (fig. 2, 6.) rounded, very short. Capsule (fig. 7.) 
elliptic-oblong, blunt, angular, ribbed. Seeds minute, tunicated. 
The spreading segments of th e perianthium ; the spurless, 2-lobed lip ; the 
wingless column ; the anther fixed by its base, and parallel with the stigma ; 
and the farinaceous pollen ; will distinguish this from other genera in the same 
class and o r der.— Three species British. 
LISTE'RA NIDUS-AVIS. Common Bird’s-nest. 
Spec. Char. Leaves none. Stem with sheathing scales. Co- 
lumn without any crest. Lip oblong-spear-shaped, with 2 spread- 
ing lobes, toothless at the base. 
Ilook. FI. Lond. t. 58. ; FI. Scot. p. 253. — Sm. Engl. FI. v. iv. p. 38. — Hook. 
Brit. FI. p. 377.— Macr. Man. Brit. Bot. p. 229 — Grev. FI. Edin. p. 186.— FI. Dev. 
pp. 144 & 132. — Johnst. FI. Berw. v. i. p. 193. — Rev. G. E. Smith’s PI. S. Kent, 
p. 59. — Winch’s FI. Nortliumbl. and Durh. p. 57. — Walker’s FI. of Oxf. p. 258. — 
Bah. FI. Bath. p. 49, Supp. p. 95. — Irv. Lond. FI. p. 112. — Luxf. Reig. FI. p. 76. 
— Cow. FI. Guide, p. 36. — Mack. FI. Hibern. p. 280. — Epipactis Nidus Avis, 
Sw. Or-ch. p. 66. — Willd. Sp. l’l. v. iv. pt. l. p. 87. — Perry’s PI. Varvic. Select®, 
p 74. — Neottia Nidus Avis, Lind. Syn. p. 258. — Neottia abortiva, Gray’s Nat. 
Arr. v. ii. p. 209. — Ophrys Nidus Avis, Linn. Sp. PI. p. 1339. — Huds. FI. Angl. 
(2nd edit.) p. 388. — Sm. FI. Brit. V. iii. p. 931. — With. (7th edit.) v. ii. p. 36. — 
Lightf. FI. Scot. v. i. p. 522.— Sibth. FI. Oxon. p. 12.— Abbot’s FI. Bedf. p. 194.— 
I’urt. Mid. FI. v. ii. p. 426 ; & v. iii. p. 378. — Relh. FI. Cant. (3rded. ) p. 362. — Or- 
chis abortiva fttsca, Bauli. Pin. p.86. — Rudb. Elys. v. ii. p.218. f. 1. — Nidus Avis, 
Ray’s Syn. p. 382. — Satyrium abortivum, sive Nidus Avis, John. Ger. p. 228. 
Fig. 1. Front view of a Flower. — Fig. 2. Side view of a portion of the Column ; 
a. the upper lip of the Stigma, with the pollen masses on its upper surface; b. the 
lower lip of the Stigma; c. the Anther, having discharged its pollen masses. — 
Fig. 3. Portion of the Column seen from behind, the anther being removed ; 
a. upper lip of Stigma with pollen masses ; b. lower lip of ditto ; c. recurved tuber- 
cle. — Fig. 4. Back view of Anther, removed from fig. 3. — Fig. 5. Front view of 
Anther before it has discharged its pollen masses. — Fig. 6. Granules of which pollen 
masses are composed. — Fig. 7. Capsule. — All, except fig. 1. more or less mag- 
nified. Figs. 2, 3, 4, 5, & 6, from FI. Lond. 
* So called in honour of Dr. Martin Lister, an eminent British Naturalist. 
Ho° KE R. 4" See f. 8. n. t. 4 See f. 33, n. t. 
