THE GENERA OF BRITISH FLOWERING PLANTS 



219 



405. Cephalanthera. Stem leafy; flowers erect, 

 in a spike; perianth meeting; column long; ovary 

 twisted; beak of style short. 



406. Helleborine (Epipactis). Stem leafy; 

 flowers in raceme, drooping; perianth spreading; 

 lip interrupted; rostellum short; column short; 

 ovary straight, stalk twisted. 



407. Orchis. Perianth hooded ; lip 3-lobed, 

 spurred; spur long; pollen glands in one pouch. 



408. Aceras. Perianth hooded; lip pendant, 

 3-lobed; spur o; pollen glands in i pouch. 



409. Ophrys. Perianth spreading; lip lobed; 

 spur o; pollen glands in 2 pouches. 



410. Herminium. Perianth spreading, bell- 

 shaped; lip petaloid; spur o; lip 3-lobed; pollen 

 glands naked, exserted. 



411. Habenaria. Perianth gaping, hooded; 

 lip spurred; spur long or short; lip 3-lobed or 

 entire; pollen glands naked. 



412. Cypripedium. Perianth spreading; lip 

 large, saccate; anthers 2 (i in rest of Orchids); 

 column 3-fid above. 



Order 80. IRIDACE^: 



413. Iris. Perianth regular, 6-cleft, segments 

 unequal, alternate ones reflexed; stigmas 3, 

 petaloid; ovary 3-celled. 



414. Hermodactylus. As 413, rootstock digi- 

 tate; ovary i-locular. 



415. Crocus. Perianth regular, funnel-shaped; 

 tube long, segments equal; stigma 3-fid or 

 3-partite. 



416. Romulea. Perianth regular, 6-cleft, seg- 

 ments equal; tube short; styles 3, 2-fid; lobes 

 slender. 



417. Sisyrinchium. Perianth 6-cleft, segments 

 subequal; tube short; styles 3, short, entire, 

 slender; filaments united below. 



Order 81. AMARYLLIDACE^: 



418. Narcissus. Perianth-mouth with circular 

 corona (crown); limb 6-partite, segments equal; 

 stamens included, unequal. 



419. Galanthus. Perianth without corona, 

 6-partite, segments unequal, in 2 series, outer 

 larger; stamens equal. 



420. Leucojum. Perianth bell-shaped, without 

 corona; segments equal with thickened tips- 

 stamens equal. 



Order 82. DiOSCOREACE^: 



421. Tamus. Twining plant, dioecious, stem 

 twining to left; perianth bell-shaped, small, limb 

 6-partite; 6 stamens; in female, perianth adnate to 

 ovary; fruit a berry. 



Order 83. LILIACE;E (AND ASPARAGACE.E AND 

 MELANTHACE^:) 



422. Ruscus. Shrub ; cladodes in axils o 

 minute scales; plant dioecious; stamens 3; fila 

 ments united below; berry i-celled, 2-seeded. 



423. Asparagus. Herbaceous; stem branched 

 flowers axillary; perianth 6-partite, tubular below 

 stamens 6; filaments free; stigmas 3, reflexed. 



424. Polygonatum. Stem simple; leaves 

 nany; flowers axillary; perianth tubular, 6-cleft, 

 leciduous at length; berry with i-2-seeded cells. 



425. Maianthemum (fJntfolium).Slem simple; 

 eaves 2; flowers in terminal racemes; perianth 



partite; stamens 4; berry 2-celled. 



426. Convallaria. Stem simple; leaves radical; 

 lowers in raceme; perianth globular, 6-partite; 

 >erry with i -seeded cells. 



427. Simethis. Rootstock bulbous; flowers 

 ointed on pedicels, purple outside, white within; 

 jerianth-segments 6, spreading; filaments bearded; 



anthers attached by back. 



428. Allium. Flowers in umbel; spathe of i or 

 2 leaves; perianth-segments 6, spreading; anthers 

 attached by backs. 



429. Muscari Leaves radical; perianth-seg- 

 ments coherent below; perianth globose, mouth 

 narrowed; 6-cleft. 



430. Scilla (Endytniori). Flowers blue or pink, 

 n racemes; perianth -segments 6, spreading; 



anthers attached by backs. 



431. Ornithogalum. Flowerswhite or greenish; 

 perianth segments 6; persistent; stamens on re- 

 ceptacle; anthers attached by backs. 



432. Lilium. Flowers on leafy scape, few, 

 nodding, panicled; nectaries o; perianth spreading 

 or turned back; anthers attached above the base; 

 seeds flat. 



433. Fritillaria. Flowers nodding, large, 

 solitary, red or white, chequered; nectary oblong; 

 perianth deciduous; anthers attached above their 

 base. 



434. Tulipa. Flowers large, erect, solitary, 

 yellow; nectaries o; perianth deciduous; anthers 

 erect. 



435. Gagea. Flowers in umbel, yellow, small; 

 nectaries o; leaves 1-2, linear; anthers erect; 

 perianth-segments 6, spreading; persistent. 



436. Lloydia. Flowers white, small, erect; 

 nectary transverse; anthers erect; perianth spread- 

 ing, persistent; stigma 3-angled; seeds angular 

 above. 



437. Colchicum. Style 4; ovary 4-5-lobed; 

 rootstock a corm ; flowers like Crocus, autumnal, 

 funnel-shaped; tube long; leaves several, radical; 

 ovaries buried. 



438. Narthecium. Rhizome slender, creeping; 

 flowers yellow; scape leafy; perianth 6-partite; 

 capsule 3-celled; seeds appendaged. 



439. Tofieldia. Flowers greenish - white; 

 perianth 6-partite; styles 3; stigmas 3; capsule 

 septicidal. 



440. Paris. Leaves net-veined; rhizome stout; 

 leaves in whorl, 4-5; flowers terminal; perianth 

 4-partite, in 2 whorls; styles 4; ovary 4-5-lobed. 



Order 84., JUNCACE^ 



441. Juncus. Leaves round; plant smooth; 

 perianth 6-fid, glumaceous; style simple; stigmas 

 3; capsule 3-celled; seeds many. 



442. Luzula. Plant tufted, hairy; leaves flat, 

 grass-like; capsule i-celled, 3 -valved; seeds 3 at 

 base. 



