148 
POGONIA ophioglossoides. 
Adder's-tongue-leaved Pogonia. 
GYNANDRIA MONANDRIA, 
Nat. ord. Oncmnazm. Jussieu gen. 64. Brown prod. 809. 
Div. JHI. Authera terminalis, inserta, persistens. Masse pollinis 
v. pulver&e v, è corpusculis angulatis: basi v. infra apicem affizw. 
Brown in Hort. Kew. ed. 2. 5. 901. 
POGONIA.  Labellum sessile, eucullatum, intüs cristatum. Pe- 
tala 5 distincta, eglandulosa. Pollen farinaceum. Brown in Hort. 
Kew. ed. 2. 5. 203. 
P. ophioglossoides, radice fibrosa, scapo dissitê bifoliato 1-0-floro, foliis 
ovali-lanceolatis, labello fimbriato. Pursh amer: sept. 2. 590; (sub 
ARETHUSA). E ` 
Arethusa ophioglossoides. — Linn. sp. pl. 9. 1346. Michaux bor. amer. 
2. 159. Lamarck illustr. t. 729. f. 2; (de sicco). Willd. sp. pl. 4, 
80. 
Arethusa radice fibrosa, scapi folio ovali, foliólo spathaceo lanceolato. 
Gron. virg. ed. 2. 139. 
Cypripedium folio eaulino orato-oblongo, terminali lanceolato plano. 
Gron. virg. ed. 1. 110. " . 
Helleborine virginiana ophioglossi folio D. Banister. Pluk. alm. 189. f, 
93. f. 9. 
.H. antica flore in summo caule unico carneo, barba purpurea fimbriata, 
foliis ophioglossi, radice fibrosa. Clayt. MSS. n. 77. ynn 
Radix crassé fibrosa, simplicior, rigida, horizontalis. Caulis erectus, 
simplex, bifoliatus, uncias 5 altus. Folia 2 semivapinanti-desurrentia, laming 
obali-lauceolatâ 9-5-nervi, inferioris subsesguiunciali, superioris viz semunciali, 
Flos 1 (viz 2?) semuncialis, nutans 1 oblongo-semicampanulatus, semiringens : 
pet. 5, dilutiìs lilacina, fornicato-ascendentia, isometra, 9 exteriora diver 
entia lineari-lanceolata duplo a Hora ma, isve, concava, 2 interiora oba 
Soato-oblonga sub summo hod inbrizato-conntoentia. , Labellum viz longius, 
Pandurato-obovatum, fimbriá brevi patente pectinato-inctsá fransoersê purpureo- 
striatá barbatum, intus pilis densis suprà aquatis infernt versüs decrescentibus 
cristatum, basi subventricosum, Columna transvers? striata lineis purpureis, 
duplo brevior et appressa labello, semiclavata, dorso rotundata, facie, ana, aw 
pra utrinque dentato-fissa lobulis contiguis, inferne complexa marginibus involu- 
tis unguis labelli, Operculum anthers antrorsim columne continuo-connerum. 
This singular little plant was introduced by Mr. Nuttall, 
to whom our collections are indebted for several of their 
rarest specimens. Native of North America, from Ca- 
nada to Carolina, and grows in mossy bogs and swamps. 
Although well known in our books, and represented by two 
figures from dried spontaneous specimens ;, it has, we be- 
R2 
