OF BRITISH PLANTS. 433 



Order XCI. ORCHIDE^E. 



Perianth with six segments, the inner three petaloid, two being 

 above, and one, frequently lobed and spurred, below. Stamens 

 three, united in a central column, the lateral two, or sometimes the 

 middle one, abortive ; pollen powdery or coherent in masses. Ovary 

 one-celled, inferior, with three parietal placentas ; style forming 

 part of the column with the stamens ; stigma a viscid space in front 

 of the column. Capsules three-valved ; seeds very numerous, mi- 

 nute, with a loose, reticulated testa. 



OPHRYDEJE. 6. Listera, 334, 339. 



1. Orchis, 334, 335. 7. Epipactis, 334, 340. 



2. Ophrys, 334, 338. MALAXIDEJE. 



3. Herminium, 334, 337. 8. Malaxis, 334, 341. 



NEOTTIE^E. 9. Corallorhiza, 335, 341. 



4. Neottia, 334, 393. CYPRIPEDE.E. 



5. Goodyera, 334, 338. 10. Cypripedium, 334, 342. 



Order XCII. IKIDE^E. 



Perianth with six segments, petaloid, often unequal. Stamens 

 three, at the base of the outer segments ; anthers extrorse. Ovary 

 inferior, three-celled ; style one ; stigmas three, dilated, often pe- 

 talliform. Capsule three-celled, three-valved ; seeds numerous, 

 hard, with a cylindrical embryo, and generally horny albumen. 



1. Iris, 58, 64. 2. Trichonema, 58, 63. 



3. Crocus, 58, 63. 



Order XCHI. AMARYLLIDE^. 



Perianth with six segments, petaloid, unequal. Stamens six, at 

 the base of the segments ; anthers introrse. Ovary inferior, three- 

 celled ; style one ; stigmas three, dilated, often petalliform. Cap- 

 sule three-celled, three-valved ; seeds numerous, with the integu- 

 ment not hard, the embryo straight. 



1. Narcissus, 163, 165. 2. Leucojum, 163, 165. 



3. Galanthus, 163, 164. 



Order XCIV. TAME^E. 



Perianth with six segments, petaloid. Stamens six, at the base 

 of the segments ; anthers introrse. Ovary inferior, three-celled ; 

 ovules two in each cell, erect ; style one ; stigmas three, reflexed. 

 Fruit bacciform, three-celled. Embryo minute, enclosed in the 

 albumen. 



1. Tamus, 367, 380. 



Section II. GLUMACEJ3. 



Floral envelopes of alternate, imbricated bracteas or scales. 



Order XCV. CYPERACE^E. 



Flowers perfect or frequently monoecious, each having a chaff- 

 like scale on a common axis. Perianth none, or rarely membranous . 

 202 



