GENUS 24. 



ORCHID FAMILY. 



573 



i. Cytherea bulbosa (L.) House. Calypso. 

 Fig. 1410. 



Cypripedium bnlbosum L. Sp. PI. 951. 1753. 

 Calypso borealis Salisb. Par. Lond. pi. 89. 1807. 

 Calypso bulbosa Oakes, Cat. Vermont PI. 28. 1842. 

 Cytherea bulbosa House, Bull. Torr. Club 32: 382. 1905. 



Bulb 5" in diameter or less. Scape 3'-6' high; leaf 

 round-ovate, i'-ii' long, nearly as wide, obtusely pointed 

 at the apex, rounded or subcordate at the base, the petiole 

 I '-2' long; flowers variegated, purple, pink and yellow, 

 the peduncle jointed; petals and sepals linear, erect or 

 spreading, 5 "-7" long, with 3 longitudinal purple lines; 

 lip large, saccate, 2-divided below, spreading or drooping, 

 with a patch of yellow woolly hairs ; column erect, broadly 

 ovate, shorter than the petals; capsule about i' long, many- 

 nerved. 



Labrador to Alaska, south to Maine, Michigan, California, 

 and in the Rocky Mountains to Arizona. Also in Europe. 

 Flower somewhat resembling that of a small Cypripedium. 

 May-June. 



25. TIPULARIA Nutt. Gen. 2 : 195. 1818. 



Slender scapose herbs, with solid bulbs, several generations connected by offsets, the 

 flowers in a long loose terminal raceme. Leaf solitary, basal, unfolding long after the flow- 

 ering season (in autumn), usually after the scape has perished. Scape with several thin 

 sheathing scales at the base. Flowers green, nodding, bractless. Sepals and petals similar, 

 spreading. Lip 3-lobed, produced backwardly into a very long spur. Column erect, wing- 

 less or very narrowly winged. Anther terminal, operculate, 2-celled. Pollinia 4, ovoid, 

 waxy, 2 in each anther-sac, separate, affixed to a short stipe, which is glandular at the base. 

 [Latin, similar to Tipula, a genus of insects, in allusion to the form of the flower.] 



Two known species, the following of eastern North America being the generic type, the other 

 Himalayan. 



i. Tipularia unifolia (Muhl.) B.S.P. Cane- 

 fly Orchis. Fig. 1411. 



Limodorum unifolium Muhl. Cat. 81. 1813. 

 Tipularia discolor Nutt. Gen. 2: 195. 1818. 

 Tipularia unifolia B.S.P. Prel. Cat. N. Y. 51. 1888. 



Scape glabrous, i5'-2o' high, from a hard, often 

 irregular solid bulb or corm. Leaf arising in 

 autumn from a fresh lateral corm, ovate, 2'-3' long, 

 dark green, frequently surviving through the winter, 

 i '-2' wide. Raceme s'-io' long, very loose; flowers 

 green, tinged with purple; pedicels filiform, bract- 

 jess, 4"-6" long; sepals and petals 3"-4" long, nar- 

 row ; lip shorter than the petals or equalling them, 

 3-lobed, the middle lobe narrow, prolonged, dilated 

 at the apex, the lateral lobes short, triangular; spur 

 very slender, straight or curved, often twice as long 

 as the flower; column narrow, erect, shorter than the 

 petals, the beak minutely pubescent; capsule ellip- 

 soid, 6-ribbed, about 6" long. 



Tn woods, Massachusetts to Pennsylvania, Florida, 

 Kentucky, Arkansas and Louisiana. Reported from Ver- 

 mont and Michigan. Tallow-root. July-Aug. 



26. APLECTRUM Xutt. Gen. 2 : 197. 1818. 



Scapose herbs, from a corm, produced from the one of the previous season by an offset, 

 sometimes with coralloid fibres, the scape clothed with several sheathing scales. Leaf soli- 

 tary, basal; developed in autumn or late summer, broad, petioled. Flowers in terminal 

 racemes, the pedicels subtended by small bracts. Petals and sepals similar, narrow. Lip 

 clawed, somewhat 3-ridged ; spur none. Column free, the anther borne a little below its 

 summit. Pollinia 4, lens-shaped, oblique. [Greek, meaning without a spur.] 



A monotypic North American genus. 



