306 
80. ORCHIDE.C. 
Seeds covered with beautiful j)rominent spirally twisted cells. 
— Ponds and ditches. P. VII. VIII. 
2. Stratiotes Linn. Water Soldier. 
I. S. alnides (L.); I. swordshaped- triangidar ciliate-spinous. 
— E.B. 379 . R. III. — Creeping extensively in the mud. L. 
numerous rigid like those of an aloe. Stalk compressed, 5 or 6 
in. high with 2 1. near its summit. FI. white, dehcate. The 
plant rises to the sm’face of the water to flower and sinks again 
afterw ards. — Ditches in the east of England ; naturalized in Scot- 
land. P. VII. ' E. 
Order LXXX. ORCHIDE^. 
Sej). 3, usually coloured. Pet. 3, 2 above, 1 below (hp) fi’e- 
quently lobed and spiu-red and unlike the others. Stam. 3, united 
in a central column, 2 lateral abortive, or (in Cypripedium) the 
middle one abortive. Pollen powdery or adhering in masses. 
Ovary 1 -celled, inferior, w'ith 3 parietal placentas. Style form- 
ing part of the column with the stam. ; stigma a viscid space in 
fi’ont of the column. Caps. 3-valved. Seeds very numerous, 
minute. Testa loose, reticulated. 
Tribe I. OPHRYDINE./E. Pollen-masses in divisible lobes 
which are indefinite in number and waxy. Anthers wholly 
adnate. 
* Cells of the anther with a rostellate process between their bases. 
1. Orchis. Perianth ringent, hooded. Lip 3-lobed, spurred. 
Glands of the stalks of the pollen-masses in a common pouch. 
2. Gymnadenia. Glands of the pollen-masses without a 
])ouch. Otherwise like Orchis. 
3. Aceras. Lip without a spur. Otherwise like Orchis. 
** Cells of the anther without any process between their bases. 
4. Habenaria. Perianth ringent, hooded. Lip 3-lobed or 
enthe, spurred. Glands of the stalks of the pollen-masses 
e.xserted, naked. 
5. Ophra's. Perianth patent. Lip variously lobed, without 
a spur. Glands of the stalks of the pollen-masses each in a 
distinct pouch. 
6. Herminium. Perianth bellshaped, segments all erect. 
Li]) 3-lobed, tumid beneath at the base, without a spur. 
Glands of the stalks of the pollen-masses exserted, naked. 
