Glass XX. GYNANDRIA. 751 
1928. Liparis. Perianth, spreading. Lip flat, expanded, entire, turned various ways. Column winged. 
Pollen-masses 4, with neither caudicula nor glands. 
1929. Calypso. Lip ventricose, spurred beneath near the end. Sepals ascending, 1-sided. Column petaloid, 
dilated. Pollen-masses 4. 
§ 5. Pollen granular. Seeds not arillate. 
1930. Vanilla. Flower jointed with ovary, and deciduous. Lip united at base with columna. Capsule 
fleshy. 
Order 2. DIANDRIA. 
Stamens 2. 
1931. Cypripedium. Lip ventricose, inflated. Column terminated by a petaloid lobe dividing the anthers. 
Two anterior sepals usually united. 
1932. Stylidium. Cal. 2-lipped. Cor. irregular, 5-fid ; the fifth segment dissimilar. Column reclinate, with 
a double bend. Anthers with 2 spreading lobes. Caps. 2-celled. 
1933. Gunnera. Cal. 2-toothed, superior. Cor. O. Style 2-parted. Drupe 1-seeded, crowned by the teetli 
of the calyx. 
Orders. HEXANDRIA. Stamens 6. 
1934. Aristolochia. Cal. O. Cor. 1-petalous, ligulate, ventricose at base. Caps, 6-celIed, many-seeded, in- 
ferioi. _ ^ 
MONANDRIA. 
12789 Helmet blunt : spur conical deflexed. Inner sepals 2-toothed, Lip obovate velvety flat, Spike lax 
12790 Helmet erect acute. Lip stalked dilated at end trifid. Stem few-flowered. Leaves linear 
12791 Helmet blunt : spur obi. keeled convex at back. Lip linear acutish, Spike lax, Bractes shorter than fls. 
12792 Helmet blunt : spur obi. Lip linear broadest at end. Spike cylindrical, Bractes erect longer than flowers 
12793 Helmet acute erect : spur conical nodding. Lip linear blunt. Stem about 2-fl. 
12794 Leaves filiform shorter than 3-flowered scape. Spur blunt ascending 
12795 Radical leaves twin cordate roundish concave : cauline remote cucullate bluntish 
12796 Radical leaves twin cordate roundish : cauline sheath-like close. Spike compact, Sepals keeled outside 
12797 Leaves ovate acuminate somew. reflexed sheathing coriaceous crenated at edge, Fls. and helmet cernuous 
12798 Horn filiform twice as long as ovary. Lip linear entire, Rad. leaves twin oblong narrowed at base 
12799 Lip lanceolate obtuse dilated at base. Spur the length of lip a little shorter than the ovary. Stem leafy 
12800 Lip linear lanceolate. Three upper sepals erect conniving : lateral reflexed. Leaves 2 orbicular 
12801 Bulbs palmate. Lip trifid entire. Spur setaceous twice as long as ovary 
12802 Horn short double. Lip linear 3-toothed : lateral teeth acute ; middle very short 
12803 Horn blunt 3 times shorter than ovary. Lip 3-parted : segments acute ; middle one largest 
["ovary 
12804 Lip3-lob. : lobes cren. obt. midd. oneemargin. Seg. of perianth ascend, obt. Spur conic, ascend, shorter than 
12805 Lip 3-lobed : lateral reflexed toothletted ; middle shorter than blunt. Spur long comp. truncate ascending 
12S06 Lip3-lob. crenul. obt. : the midd. lobe cleft, Seg. of the perianth cleft ; exterior one reflex. Spur lin. ascend. 
compressed at the extremity rather longer than the ovary 
and Miscellaneous Particulars. 
1857. Platanthera. So named from o-Aa-ryj, broad, and av3-y,£«, an anther, on account of the width of that 
organ, which is as broad or broader than the base of the labellum. Curious wood plants with greenish flowers. 
Platanthera bifolia is one of our indigenous plants, which may be cultivated without any difficulty, if planted 
in pure loam from a lime-stone bottom. It succeeds in a pot, if filled half full of broken tiles ; and when in 
the open ground, the border should be well drained, at least six inches in depth. No plant bears forcing 
better, or exhales a more delightful perfume. This species is never observed but in a lime-stone soil, and is 
exceedingly plentiful near Buxton. 
1858. Gymnadenia. From yufx-vog, naked, and osS'^i*, a gland ; because it differs from Orchis in not having 
the glands enclosed in a pouch, but altogether uncovered. The principal .species of the genus is the Orchis 
conopsea of old botanists. 
1859. Orchis. Tlic Greek name of the plant. In Arabic, according to Forskahl, it is called safihlelt, from 
