OPHRYDE^— GYMN AD ENI IN yE—CCELOGhOSSUm 125 



Genus XIII CCELOGLOSSUM Hartman 



Column short, anther broader than long, cells divergent downwards, polhnia with 

 short ribbon-like caudicles, viscidia little broader than caudicles, one on each side 

 of the central stigma on the back of the spur-chamber. 



Small herbs with palmate tubers, ovate or oblong leaves, small green or brown 

 flowers, sepals connivent in a helmet, strap-shaped lip, and short saccate nectari- 

 ferous spur, 



Hartman, Handb. Scand. Flora, ed. i, p. 329 (1820). Peristylus Lindl. (1835). 

 Included in Habenaria by R. Br. (18 13). 



I. CCELOGLOSSUM VIRIDE Hartman 

 PI. 22 B; PI. C, fig. 3 (p. 50). Frog Orchid 



Tubers two, thick, palmate with two (rarely three) carrot-shaped segments; roots 

 few, short. Stem 6-25 cm. tall, sohd, erect, cylindrical, angled above with often 

 reddish ridges, and with 1-2 brown obtuse leafless sheaths at base. Leaves alternate, 

 3-5, bluish green, ovate to oblong, rather obtuse, with winged stalk, and 5-5 nerves 

 on each side of mid-rib with numerous cross-veins; the upper 1-2 lanceolate acute, 

 sessile, with long sheath. Spike usually short (sometimes up to 9 cm. or more), few- 

 er many-flowered, loose or rather dense. Flowers rather small, inconspicuous, 

 distant or close together, green, sometimes more or less edged or suffused with 

 reddish brown, or wholly red-brown, faintly scented. Bracts lanceolate to oblong, 

 rather obtuse, green or suffused with reddish brown, 3 -nerved with irregular cross- 

 veins, very variable in length, usually longer than ovary, sometimes 2-3 times as 

 long. Ovary cylindrical or spindle-shaped, twisted, green or brownish, with six 

 shght ridges. Sepals short, ovate obtuse, forming a semi-globular hood, the upper 

 shghtly shorter, 3-5 -nerved, free or partly adherent. Petals linear-lanceolate, very 

 narrow, i-nerved, acute, often protruding from the helmet. Lip linear-oblong, 

 slightly enlarged downwards, thick, flat, green often edged red, hanging or bent 

 backwards, 3-toothed at apex, side-teeth 1-3 mm. long, lanceolate, pointed, curved 

 forwards, middle tooth shorter, obtuse, often reflexed, with an obtuse keel down the 

 centre in front and two shallow thickened ears where it joins the column, forming 

 a chamber at the mouth of the spur. Spur very short (±2 mm.), bladder-like, semi- 

 transparent, greenish white, flattened from back to front, rounded, sometimes grooved 

 at the apex, which is slightly curved forward, with a green band running from the 

 column down the middle of the back and up the front. Column short, broad, viewed 

 from behind like the ace of clubs. Staminodes whitish, large, obtuse. Anther 



