474 



ORCHIDACEAE. 



9. PERAMIUM Salisb. Trans. Hort. Soc. i: 301. 1812. 



{GOODYERA R. Br. in Ait. Hort. Kew. Ed. 2, 5: 197. 1813.] 



Herbs with bracted erect scapes, the leaves basal, tufted, often blotched with white, the 

 roots thick fleshy fibres. Flowers in bracted spikes. Lateral sepals free, the upper one 

 united with the petals into a galea. Lip sessile, entire, roundish ovate, concave or saccate; 

 without callosities, its apex reflexed. Anther without a lid, erect or incumbent, attached to 

 the colnmn by a short stalk; pollinia one in each sac, attached to a small disk which coheres 

 with the top of the stigma, composed of angular grains. 



About 25 species, widely distributed in temperate and tropical regions. 



i. P. repens. 



Spike one-sided. 

 Spike not one-sided. 



Flowers 2" '-3" long; galea ovate, its short tip usually not recurved. 



Flowers 3" -4" long; galea ovate-lanceolate, its long tip recurved. 



2. P. pubescens. 



3. P. Menziesii. 



i. Peramium repens (L,.) Salisb. Lesser Rattlesnake Plantain. (Fig. 1131.) 



Satyrtum repens L. Sp. PI. 945. 1/53. 



Goodvera repens R. Br. in Ait. Hort. Kew. Ed. 

 5: 198. 1813. 



Peramium repens Salisb. Trans. Hort. Soc. i: 

 301. 1812. 



Scape s'-io' high, glandular-pubescent, 

 bearing several small scales. Leaves ovate, 

 the blade 6 // -i5 // long, 4 // -8 // wide, some- 

 what reticulated or blotched with white, 

 tapering into a sheathing petiole spike short, 

 i-sided; flowers greenish white, 2 // -3 // long; 

 galea concave, ovate, with a short spreading 

 or slightly recurved tip; lip saccate, with a 

 narrow recurved or spreading apex; column 

 very short; anther 2-celled; pollinia not pro- 

 longed into a caudicle. 



In woods, Nova Scotia to Alaska (?), south to 

 Florida and Minnesota and Colorado. Also in 

 Europe and Asia. Ascends to 5000 ft. in Vir- 

 ginia. July-Aug. 



2. Peramium pubescens (Willd.) MacM. 



(Fig. 1132.) 



Downy Rattlesnake Plantain. 



Neottia pubescens Willd. Sp. PI. 4: 76. 1805. 



Goodyera pubescens R. Br. in Ait. Hort. Kew, Ed. 

 2, 5: 198. 1813. 



Peramium pubescens MacM. Met. Minn. 172. 1892. 



Usually larger than the preceding species,, 

 scape 6 / -2o / high, densely glandular-pubescent, 

 bearing 5-10 lanceolate scales. Leaves i f -2 f 

 long, 8 // -i / wide, strongly white-reticulated, 

 oval or ovate; spike not i -sided; flowers 2 // -3" 

 high, greenish white; lateral sepals ovate; galea 

 ovate, its short tip usually not recurved; lip 

 strongly saccate with a short broad obtuse 

 recurved or spreading tip. 



In dry woods, Newfoundland to Ontario -and 

 Minnesota, south to Florida and Tennessee. As- 

 cends to 4000 ft. in North Carolina. July-Aug. 



