PIPERACEAE (PEPPER FAMILY) 



8 BLEPHARIGL6TTIS. 



1 a Flowers some shade of yellow 2 



b Flowers some shade of lilac 3 



2 a Flowers orange-yellow, the lip much fringed 



YELLOW-FRINGED ORCHIS. (B. ciliaris.) 

 b Flowers greenish-yellow, the lip 3-parted, the parts 



fringed RAGGED ORCHIS. (B. lacera.) 



3 a Flowers lilac, %-i in. broad 



PURPLE-FRINGED ORCHIS. (B. psycbdes.) 

 b Flowers pale lilac, 1-2 in. broad 



LARGE PURPLE-FRINGED ORCHIS. (B. grandiftbra.) 



9 POG6NIA ROSE POGONIA. (P. ophioglossoldes.) 



10 ARETHtTSA ARETHUSA. (A. bulbbsa.) 



11 LIMOD6RUM GRASS PINK. (L. tuberbsum.) 



12 GYROSTACHYS. 



i a Leaves linear, 3-14 in. long 



NODDING LADIES' TRESSES. (G. cernua.) 

 b Leaves ovate, 1-3 in. long 



SLENDER LADIES' TRESSES. (G. grdcilis.) 



13 PERAMIUM RATTLESNAKE PLANTAIN. (P. pubescent.) 



14 LEPT6RCHIS. 



i a Leaves ovate; flowers purple. . TWA YBLADE. (L. liliifblia.) 

 b Leaves elliptic to lanceolate; flowers greenish 



FEN ORCHIS. (L. loeselii.) 



15 CORALLORHlZA CORAL-ROOT. (C. muttiflbra.) 



Sub-Class II. 



DICOTYLEDONEAE. Dicotyledons. 

 Series I. Choripetalae. 



1 PIPERALES. Pepper Order. 

 i PIPERACEAE. Pepper Family. 



i PEPER6MIA PEPEROMIA. (P. arifblia*) 



2 SAUE.ACEAE. Lizard's-tail Family. 

 i SAURURUS LIZARD'S-TAIL. (S. cernuus.) 



2 SALICALES. Willow Order, 

 i SALICACEAE. Willow Family. 



i P6PULUS. 



i a Petioles of leaves not flattened laterally 2 



b Petioles of leaves flattened laterally 3 



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