, 
_ Claily at night, as sudden sharp frosts frequently make their appearance # 
310 THE ORCHID REVIEW. 
CATTLEYA AQUINII. 
Under this name M. Barbosa Rodriguez, Director of the Botanic 
Garden at Rio de Janeiro, has described a remarkable Cattleya, which 
he cites as confirming a theory which he has formulated, that an Orchid 
flower consists of twenty-four organs; namely, a calyx of six sepals 
corolla of six petals, and twelve reproductive organs. M. Rodriguez pra 
tically admits that it is a variety of Cattleya intermedia, yet he calls ita 
species, because he considers it to be a reversion to a primitive type. Itis 
a native of Rio Grande do Sul, and was discovered by M. Francisco ée 
Aquino, of Porto Alegre, who has cultivated it for eight years, during which 
it has proved quite constant. It appears to me to be somewhat analogous 
to Cattleya intermedia var. prolifera (Gard. Chron., 1887, ii., pp. 12, 13, fig. 3) 
a curious proliferous form, which also shows indications of becoming pet 
manent. It has the colour of C. intermedia, but the petals are somewhtt 
lip-like in character, both in form and colour. I should consider it neither 
more nor less than an abnormal state of the species just named, which has 
become fixed or permanent, like Uropedium, or Epidendrum vitellinum 
flore pleno. 
Cattleya Aquinii, Rodr. in Journ. des Orch. iv., p. 144. 
CALENDAR OF OPERATIONS FOR OCTOBE. | 
By W. H. Wuire, Burford, Dorking. 
ONE very important matter with regard to the management of Orchids ol 
during October is the regulation of the atmosphere in the houses, espe 
this season. The grower should always be on the alert to prevent, ashe | 
Possible, any great fluctuations in the temperatures, so that all evil al 
on the plants through this cause may be avoided. Generally, October frost 
come upon us during the early hours of the morning, and the temperature ela 
of the various de than they 
should be, down be 
extra heat in the Pipes at night, which will not only prevent ae al 
peratures from falling too low by the morning, but will al le 
es the young growths of many autumn-growing Orchids. 
tage is, that by having a little more heat in the pipes, more 
be safely admitted than when less artificial heat is used. Of ©? 
