ORCHIDACEAE (ORCHIS FAMILY) 



311 



f- t- Flowers pale or deep magenta (purplish). 



18. H. psyc&des (L.) Sw. Usually about 5 dm. high; lower leaves 2-4, 

 oval to lanceolate or oblanceolate, passing into the linear-lanceolate bracts; 

 raceme cylindrical, about 3-3.5 cm. through, often densely many- 

 flowered ; lower sepals round-oval ; petals variable, mostly 

 wedge-obovate to spatulate, more or less denticulate ; lip spread- 

 ing, 3-parted, usually 1-1.2 cm. broad, the three divisions mostly 



fringed less than their depth. Wet open meadows and 

 swamps, Nfd. to Minn., south w. to N. C. July, Aug. FIG. 621. 

 x H. AndrSwsii White. (H. lacera x H. psycodes.) Lower 

 leaves as in H. lacera; raceme loosely flowered; flowers white, 

 rose-tinted ; petals cuneate-spatulate, obtuse or slightly retuse, 

 denticulate above ; divisions of lip narrowly cuneate, deeply 

 cleft as in H. lacera. Pownal, Vt. ; S. Chesterville, Me. July, 

 Aug. 



19. H. fimbriata (Ait.) R. Br. Usually a little taller than the preceding 

 species ; lower leaves 3-5, oval to lanceolate and oblanceolate, passing into 

 lanceolate bracts ; spike usually subcylindrical, mostly 5-6 cm. through, loosely 

 flowered ; lower sepals ovate ; petals more or less oblong, denticulate ; lip usually 

 1.8-2 cm. wide, 3-parted ; the divisions mostly fringed to | of their depth or 

 more. (H. grandiflora Torr.) Rich wet deciduous woods and borders, Nfd. 

 to N, Y. ; southw. in the mts. to N. C. Late June to early Aug. Most obvi- 

 ously distinguished from H. psycodes by the larger paler flowers and greater 

 diameter of the raceme ; leaves broader ; generally blooming somewhat earlier 

 than H. psycodes. 



20- H. peramoSna Gray. Lower leaves oblong-ovate, the upper lanceolate ; 

 spike cylindrical, densely flowered ; lower sepals round-ovate ; petals rounded- 

 obovate, raised on a claw ; divisions of the large lip very broadly wedge-shaped, 

 irregularly eroded-toothed at the broadly dilated summit, the lateral ones 

 truncate, the middle one %-lobed. Moist meadows and banks, Pa. and N. J. 

 to UK, s. to Mo.; and in the mts. to Ala. June-Aug. Flowers large and 

 showy (violet-purple) ; lip 16-20 mm. long, variably toothed, but not fringed. 



4. POGdNIA Juss. 



Sepals and petals free. Lip papillose-crested. Column free, slender below 

 the summit; anther terminal, operculate, with a distinct stalk, fleshy, thick; 

 Vollen-masses 2, powdery-granular, without caudicles or gland. (Ilwywvias, 

 bearded, from the lip of some of the original species.) 



* Lip lacerate-toothed, otherwise not lobed. 



1. P. ophioglossoides (L.) Ker. Plants 1-3 dm. or more 

 high, glabrous, bearing a single oval or lance-ovate leaf near 

 the middle and a bract below the usually solitary terminal 

 flower ; sepals narrowly oval, about 2 cm. long ; petals similar, 

 but broader ; lip spatulate, inclosing the column at base ; crest 

 yellow to white, otherwise the flowers magenta-pink, very rarely 

 622. P. ophioglos- white. Bogs, Nfd. to Minn., southw. to Fla. June, July, 

 soides x y 8 . FlG> 622 . 



* * Lip three-lobed, merely fimbrillate-margined. 

 - Leaves several, distinctly alternate, not ichorled. 



2. P. trianth6phora (Sw.) BSP. Plants 3-20 cm. high, from ovoid or sub- 

 cylindrical tuberoids ; leaves 1-4, broadly ovate, about 1 cm. long ; flowers 

 several, drooping, transitory, borne in the axils of the upper leaves, on 

 slender pedicels ; perianth about 16 mm. long ; lip ovate, slightly papillose 

 along the middle, lateral lobes obtuse. (P. pendula Lindl. ; Triphora pendula 

 Nutt.) Woods, Me. to Wise, and Mo., southw. Aug. 



