MEMORANDA. 209 
raphides abundant in swollen part of stem, scarcer in its thin 
part and leaf; woody part of stem made up of dotted vessels. 
Cattleya Mossie (leaf and swollen part of stem): raphides 
abundant. Phaius grandifolius : bundles of raphides swarming 
in the leaves, bulb, and root-fibres; in the bulb, raphis-cells 
very large and hyaline, also a profusion of beautiful, conical, 
large starch-granules, average length ~4;th, and breadth 
=1, ofaninch. SBrassia (a bit of the leaf, as also in all the 
following): raphides, but not very plentiful. Oncidium: 
very few bundles of raphides. Megaclinium: raphides abun- 
dant, and a beautiful subcuticular spheraphid tissue (‘ An- 
nals,’ Sept., 1863, pl. iv., fig. 13) ; the diameter of each of 
the sheraphides regularly about ;,',,thof an inch. Ansellia: 
raphides rather numerous. Bolbophyllum: raphides pretty 
numerous. 
Aracee.—Among some fragments of plants to aid this 
inquiry, which were obligingly supplied by Mr. Cox, the 
excellent superintendent of the Redleaf Gardens, is part of 
the leaf of Richardia ethiopica, which I find abounding in 
biforines, the raphides escaping, under gentle pressure, regu- 
larly from both ends of the oval cells—Annals Nat. Hist., 
March, 1864. 
