GYNANDllIA. MONANDRtA. 195 



leaves short and amplexicaule; flowers axillary and pe- 

 dunculate, pendulous, or erect and fasiigiate. 



Species. I. T. pendula. Arethusa pendulu, Willd. sp. 

 pi. 4. p. 82. Ph. Flor. Am. 2. p. 590. 



Obs. Root a cylindric-oblong-, and pendulous fleshy tu- 

 ber of a white ciilour. Stems often in clusters, cylindric 

 and succulent, about a span hig-h, often pubescent at the 

 base. Leaves 6 or 7, remote and very short, about half an 

 inch lont^, amplexicaule, ovate and acute, 5 to 7-nerved, 

 pale green. Flowers 3 or 4, pale blueish-purple; pedun- 

 cles axillary and terminal, about the leng-thof the g-erm, 

 after inflorescence pendulously recurved; petals hnear- 

 lanceolate, equal in length, the 2 inner a little broader, 

 connivent, never expanding-. Lip before, about the length 

 of the petals, spatliulate and ciicuUate, conspicuously un- 

 guiculate, the centre above the claw a little rough but not 

 crested; proper lip or mJddle lobe oval and entire. Ge- 

 nitaliferous column linearly spatliulate and unconnected, 

 not much shorter than the whole lip, flas (not solid and 

 truncately clavate as in Pogonia) peipendicular, margin- 

 ated, the inner surface marked with an elliptic g-landular 

 and secreting cicatrice. Anther 1 -celled, semicordate 

 and vertical, unguiculately articulated behind, colour a 

 brilliant and deep violet-purple. Pollen farinaceous, the 

 2? masses separated superficially by 2 internal lairicllae. 

 (In the preceding genus there are both these lamellae and 

 a proper dissepiment.) Capsule cylindric-oblong. Had. 

 Mostly parasitic round the roots of Beech trees, from New 

 York to Kentucky, (very abundant near Cincinnati, on the 

 Ohio), I have also collected it near Savannah in Georgia. 

 —A second species fArethicsa gentianoidesj appears to 

 exist in the island of Jamaica. Tue whole habit and cha- 

 racter is at variance witli Pogonia. It makes an artificial 

 approach towards Cymbidium hiemale of Willdenow, 

 {Avcthusa spicata of Walter), but in this plant the anther 

 is deciduous. 



614. CALOPOGON. R. Brown. Cymbidium. 

 Willd. 



Petals 5, distinct. Lip behind, (or inverted), 

 nni^uiculated; the lamina bearded. Column free. 

 Pollen angular. 



Root small and bulbous, nearly spherical; leaves radical, 

 ensiform, arid; scape racemose; bracves minute; flowers 

 reddish-purple, large. 



VOL. II. R 



