510 ORCHIDS. 
with those already mentioned, enable one to readily dis- 
tinguish all the plants known in gardens as Zygopetalums. 
Culture.—Although all the kinds are epiphytal in a state 
of nature, they thrive and flower better when grown in 
pots than when cultivated on blocks or in baskets. They 
require plenty of moisture at all times, a rich, well- 
drained peat soil, such as suits the Odontoglossums, and 
the temperature of a warm greenhouse: in a stove they 
are apt to become weak and spotted, though they may 
grow freely and look well for a time. At Kew, the 
plants are cultivated in a house the temperature of which 
often falls to 5o0deg. in winter, whilst in summer the 
structure is unheated: here they grow well and flower 
abundantly. The only exceptions are Z. rostratum, which 
requires the warmth of the stove, and Z. maxillare and 
Z. Gautieri, both intermediate-house kinds. 
Z. Clayii—A hybrid obtained by crossing Z. maxillare 
with Z. crinitum. It was raised and flowered in 1877 by 
Colonel Clay, of Birkenhead, after whom it was named. 
It is a robust grower, having ovate, furrowed pseudo-bulbs 
3in. high, and stout leaves 14ft. long. The scape is erect, 
stout, about six-flowered; flowers 4in. across; sepals and 
petals apple-green, blotched with brown; lip 14in. across, 
bluish purple, with lines of a deeper colour. The blooms 
are borne at various times of the year. 
Z. crinitum.—This scarcely differs from Z. intermedium 
in habit, pseudo-bulbs, and leaves. The flowers are borne 
on long, stout scapes. The sepals and petals are 2in. 
long, green, with fewer brown blotches than in Z. inter- 
medium. The lip is 2in. across, spreading, wavy, white, 
with purple lines springing from the crest, radiating 
towards the margins, and branching vein-like. The principal 
characters in this species are the shagginess of the lip 
