440 THE: ORCHID REVIEW. [SErr.-Oct., 1920. 
as it is crowned with such success” (O.R., xiv. pp. 196-197). The remark 
about seedling Odontoglossums was fully justified, for the Orchid Stud-Book 
shows that up to the end of the year a dozen distinct crosses had flowered, 
and two Odontiodas, the latter being O. heatonensis and O. Bohnhofiz. 
‘The firm continued to flourish at Heaton, but constantly increasing 
business soon necessitated an extension of premises, and this led to the 
acquisition of a small branch establishment at Haywards Heath. Here the 
climatic conditions proved so much superior to the Heaton locality that Mr. 
Charlesworth decided to lay out an entirely new nursery, to which all the 
plants were removed, and the old business was relinquished in September, 
1908. An account of the new establishment has been given (O.R., xvii., pp. 
170-113, 206-208), and we need only mention here that it consisted of a 
central corridor, 250 feet by 12, extending from the Office to the potting 
shed, with twelve houses, each 100 feet long, running right and left of the 
corridor, while a block of eight seedling houses of the same length extended 
right and left of a second corridor.’ All the latest improvements were in- 
corporated, the establishment being a model one in every respect. 
' Subsequent developments have testified to the progress of the establish- 
ment, some of which are recorded in a later article (O.R., xviii. pp. 266-271)» 
at which time two new generic hybrids were in bloom, namely Oncidioda 
Charlesworthii (C. Neetzliana x O. incurvum), and Miltonia Harwoodii 
(C. Neetzliana X M. vexillaria), both plants of considerable merit. It was 
then remarked: ‘‘ The raising of Odontoglossums and allied genera has 
become a very important business, and there are thousands of seedlings 
in every stage of existence. Messrs. Charlesworth are reducing it to a 
system.” Just previously they had flowered Oncidium hybridum (tigrinum 
x lamelligerum), the first artificial hybrid in the genus. By this time 
hybrids of very mixed composition were being raised, and somewhat later 
we were able to give particulars of some remarkable polymorphic 
Odontiodas, of which we saw over 140 spikes all flowering together. Some 
remarkable developments in Odontoglossum were also noted, and many 
interesting experiments were seen in progress (O.R., xxi. pp. 137-140). 
For a long time the practice of sowing Odontoglossum seeds upon the 
compost of established plants was followed, but at length, as the result of 
many experiments, the system of Noel Bernard of sowing the seeds in 
sterilised tubes with the necessary symbiotic fungi was developed on a com- 
mercial scale, and by this pure culture system the successful germination was 
reduced almost toa certainty, if the seeds were good. We have examined 
these fungi, with Mr. Charlesworth, on several occasions, also a beautiful 
series of microscopic slides, but we have not felt at liberty to give the 
details of what is a really remarkable development, and it has been 
_ xemarked by a distinguished fungologist that ‘‘ Mr. Charlesworth seemed to 
