Monocotyls or Endogoioiis Plants. 27 



Or'-chis ro-tun-di-fo'-ii-a Ph. Round-leaf Orchis.— Leaf 1 at the base 

 of stem, orbicular or oblong; the lip o-lohed. 



3. Genus HAB-E-NA'-RI-A. — This includes a large number of species 

 of Rein Orchis, some of them flowering in June, but too difficult for 

 the beginner to identify, therefore not enumerated. 



4. Genus PO-GO'-NI-A. — Lip crested or 3-lobed; stems ><-l ft. 

 high ; leaves few or small. 



Po-go'-ni-a o-phi-o-glos-soi'-des (L.) Kerr. Adder's-tongue Pogonia. — 



Stem 6-9 in. high, an oval or lance-oblong leaf near the middle and a 

 smaller one or bract near the terminal flower, rarely with 1 or 2 others 

 with a flower in the axil. 



Po-go'-ni-a tri-an-thoph'-o-ra (Sw.) B. S. P. (/*. pendula Lindl.) 

 Drooping Pogonia. — Stem 3-8 in. high; leaves 3-4, X~/^ i"- long, alter- 

 nate, ovate, clasping; flowers drooping, in upper axils. 



Po-go'-ni-a ver-ti-cil-la'-ta (Willd.) Nutt. Whorled Pogonia. — Stem 

 •6-12 in. high, with scales at the base and a whorl of mostly 5 sessile 

 leaves at the summit. 



5. Genus CO-RAL-LO-RHl'-ZA. - Flower gibbous or somewhat 

 spurred; plants destitute of green foliage. 



Co-ral-lo-rhi'-za co-ral-lo-rhi'-za (L.) Karst. [C. innafa R. Br.) Coral- 

 TOot. — Lip somewhat hastateh- 3-lobed above the base, flowers .")-12. 



Co-ral-lo-rhi'-za o-don-to-rhi'-za (Willd.) Nutt. Coral-root.— Lip en- 

 tire or nearly denticulate, with a claw-like base, flowers 6-2U. 



Co-ral-lo-rhi'-za mul-ti-flo'-ra Nutt. Coral-root. — Lip deeply 3-lobed, 

 flowers 10-30. This species blooms later. 



6. Genus A-PLEC'-TRUM. — Lip free, 3-ridged in the palate, not 

 spurred or saccate; leaf single, produced in autumn but persisting 

 through the winter. 



A-plec'-trum spi-ca'-tum (Walt.) B. S. P. [A. hyemale Nutt.) Putty- 

 root ; Adam and Eve. Flowers rather large, dingy, raceme loose. 



X. Order JUG-LAN-DA'-CE-/E. WALIMUT FAMILY. — Trees ; leaves 

 alternate, pinnate; sterile flowers in catkins, the fertile single or 

 clustered. 



