Juty, 1910.] THE ORCHID REVIEW. 205 
Intermediate house during the summer months, and removed in the autumn ° 
to the Warm house for the winter. They should never be allowed to get 
quite dry at the roots at any season. 
Laias.—Lelia purpurata will now have finished flowering, except 
perhaps a few belated ones, and as soon as the flowers are over the water 
supply should be somewhat reduced, and as soon as new roots are seen 
pushing from the base of the bulbs they should be repotted, using the 
compost as recommended for Cattleyas in a previous Calendar. L. pumila, 
prestans, and Dayana are now well rooted, and growing strongly in the 
Cool house. They should now have copious supplies of water until they 
have fully made up their new bulbs. They forma very pretty section, and 
deserve to be more widely cultivated than they are at present. Many say 
_ that they are too short-lived to trouble about, as it is a case of continually 
buying to keep it in a collection, but I think the cause of their not thriving 
in many places is because they are grown too warm. If grown cool they 
will increase in vigour, and live as long as any other Cattleya or Lelia. 
DENDROBIUM GOLDIEI VAR. KARTHAUSIANUM. 
SEVERAL very interesting Dendrobium flowers are sent from the establish- 
ment of Mr. C. F. Karthaus, Potsdam, Germany, by Mr. Blossfeld, and 
their history is thus given :—‘‘ Last year we received an importation of a 
few hundred Dendrobium superbiens, of which I am sending some flowers. 
Amongst them I found a few really fine D. Goldiei, and the best and 
darkest I called var. Karthausianum. I am sending three flowers, with 
some of the ordinary D. Goldiei and some good D. superbiens. These 
plants grow very well with us, in almost full sun, and under the same 
treatment as given to D. Phalenopsis. The spikes are also very graceful, 
and improve the appearance of all decorations in which they are used, also 
lasting as long as Cypripediums.”’ 
The variety sent is very handsome, and much more like D. bigibbum 
than D. superbiens in general character, but without the characteristic 
white crest of the former. The flowers have an expanse of 2} inches across 
the petals, which are obovate-orbicular in shape, somewhat recurved. and 
an inch broad. The lip is strongly three-lobed, with five obtuse keels on 
the disc, which are tall and strongly papillose in front. The whole flower 
is rich deep rose-purple in colour, with a trace of a narrow white margin 
to the sepals, as in D. superbiens. It is a marked improvement on the one 
sent as D. Goldiei, which probably represents Reichenbach’s species of that 
name, and which has rather smaller flowers and narrower petals, but is 
very similar in colour and other details. D.superbiens has narrower, more 
twisted sepals and petals, and rather lighter colour, with a narrow white 
margin to the petals. R.A. R 
