flOULLETIA. 12l 



bilateral symmetry of the flowers is also much less disguised than in 

 Stanhopea. The most obvious floral characters are ; — 



The sepals and petals are similar, sub-equal, and more or less 

 spreading, (Not unequal and reflexed as in Stanhopea.) 



The lip> is distinctl}' articulated at the middle ; it has horn-like 

 processes as in Stanhopea, but they are produced from the basal half 

 (hypochile) and turned backwards. 



In their vegetation the Houlletias agree with the Stanhopeas in 



having prominently ribbed, monophyllous, small pseudo-bulbs, but the 



footstalks of the leaves are much longer in proportion to the blade. 



The scapes are erect and are 5 — 10 or more flowered. 



The genus commemorates the name of M. HouUet, the discoverer 



of the type species in Brazil, who after his return to France was 



appointed Curator or Chef des cultures of the Jardin des Plantes at 



Paris. 



Cultural Note. — The cultural treatment of the Houlletias is the 

 same as that of the Stanhopeas, except that they may be grown in 

 a lower temperature such as is maintained in an intermediate house. 



Houlletia Brocklehurstiana. 



Pseudo-bulbs ovate-oblong, 3 — 4 inches long, strongly ribbed and 

 furrowed when old, monophyllous. Leaves with a long sub-terete 

 foot-stalk, 12 — 1.5 inches long; the blade lanceolate-oblong, acuminate, 

 plaited, 18 — 24 inches long. Scapes stoutish, erect, 18—24 inches 

 high, dull purple mottled with pale green, racemose along the distal 

 half, 7 — 10 flowered ; bracts narrowly lanceolate, acuminate, half as 

 long as the stalked ovaries. Flowers 3 inches in diameter ; sepals 

 and petals light red-brown striated with pale yellow and spotted with 

 darker red-brown on the basal half, the lateral sepals with a dark 

 sanguineous stain on the inner side ; dorsal sepal and petals ovate- 

 oblong, sub-acute and concave ; lateral sepals broader, elliptic-oblong, 

 keeled behind towards their tip ; lip shorter than the other segments, 

 jointed at the middle, the hypochile white densely spotted with 

 blackish warts, transversely oblong at the base, then narrowly oblong, 

 produced laterally at its junction with the epichile into two ascending 

 curved horns that are whitish streaked with red-pui'ple ; the epichile 

 broadly trowel-shaped, reflexed at the apex and prolonged at the 

 lateral angles into short cusps ; it is covered with blackish purple 

 warty asperities and light orange reticulations. Column clavate, 

 triquetral, concave below the stigma, light tawny yellow spotted with red. 



Houlletia Brocklehurstiana, Lindl. Sert. Orch. t. 41 (1839). Id. in Bot. Reg. 

 1841, niiso. No. 99. Bot. Mag. t. 4072. Paxt. Mag. Bot. IX. p. 49. Regel'a 

 Gartenjl. 1858, t. 22fl. Linden's Bcsc. t. 3G. liuhb. in Walp. Ann. VI. p. 615. 

 Lindenin, V. t. 214. Williams' Orch. Alb. VI H. t. 337. 



