r40 Orchidaceae — Iridacese. 



LISTE'RA CORDA'TA (54). Heart-leaved Tway-blade. 6—7. Stem 

 (1330) 4 — 8 in. glabrous, leaves ovato-cordate, flowers greenish-brown minute. 

 Mountain woods and moors. 



X.—OPJI/^VS. 



Sepals and petals spreading, petals much smaller than the sepals, lip 

 convex velvety variously marked, spur o, glands of pollen-masses in 2 separate 

 pouches. 



O'phrys apif'era (48). Bee-Orchis. 6—7. Sepals pink inside, lip broad, 

 (1358) convex 3-lobed brownish-purple, leaves short oblong. 



[G. {Hellifield), F. C. CI. 



O'phrys muscif'era (42). Fly-Orchis. 5 — 7. Sepals yellowish-green, 



(1361) petals reddish-brown, lip longer than broad reddish-brown with a blue 

 patch 3-lobed middle lobe bifid, leaves few linear oblong. 



[F. G. (Scar, Stackhouse), C. CI. 



O'phrys aranifera (12). Spider-Orchis. 4 — 5. Sepals yellowish-green 

 (1360) inside, petals oblong, lip dull brown, variously marked broad convex. 



[B. 



XI . — HERMINIUM. 



Hermin'ium Monor'chis (22). Musk-Orchis. 6 — 7. Stem 4 — 10 in. 



(1362) slender, radical leaves 2 oblong acute, spike slender with numerous 

 small greenish flowers smelling of musk, petals narrower and longer 

 than the sepals, lip narrow 3-lobed, mid lobe entire narrow acuminate, 

 spur o. [M. R. C. CI. 



XII. —SPIRANTHES. 



SPIRAN'TIIES AUTUMNA'LIS (57). Lady's -tresses. 8—9. Stem 



(1332) 4 — 8 in. slender, distinct from the spreading tuft of 3 — 4 ovate radical 



leaves, flowers in a spirally twisted spike small white smelling of 



almonds, sepals and petals alike erect or spreading only at the tip, lip 



oblong concave at the base. Diy pastures. [CI. 



ORDER 74. — Irldacese. 



Perianth superior petaloid of 6 segments. Stamens 3, inserted on the 

 sepals. Ovary 3-celIed. Style i. Stigmas 3 sometimes petaloid. Bracts 

 spathe-like. 



I'RIS PSEUD-AC'ORUS (112). Yellow-Flag. 5—8. Stem 2-3 ft. 

 (1371) high leafy, leaves 2 — 4 ft. long ^— I in. broad, perianth regular 3 — 4 

 in. diameter bright yellow. Ditches and river-banks. Fig. p. 134. 



I'ris foetidis'sima (46). Roast-beef plant. 5—7. Stem 1—2 ft. leafy, 

 (1370) leaves narrow, perianth regular outer segments usually purple, inner 

 yellow. IF. T. W. CI. 



