134 THE ORCHID REVIEW. 
is remarkable for its long pendulous terete leaves, and white flowers with very 
narrow segments, and D. secundum for its dense, one-sided racemes of rosy 
purple flowers. D. linguiforme is an Australian species with very short, 
fleshy leaves and racemes of white flowers, and D. Leonis a curious species 
of the Aporum group. Among Erias may be mentioned E. cristata, 
- E, flava, E. confusa, and E. bicolor. The list also includes Bulbophyllum 
Watsonianum from Hong Kong, Trias vitrina and T. picta, Brassavola 
cucullata, Pelixia maculata and P. olivacea, Xylobium leontoglossum, 
Comparettia falcata, Ponera juncifolia, the pretty little Sarcochilus 
luniferus, remarkable for its leafless habit, and various other interesting if 
not exactly showy species. 
OBITUARY. 
WE regret to hear of the death, on April r1th, of Colonel Trevor Clarke, of 
Welton Place, Daventry, in his 84th year. The deceased gentleman was 
a very old, and for many years a most active member of the Royal 
Horticultural Society, and his services to horticulture generally will 
long be remembered. Although not an Orchidist specially, in the usual 
acceptation of the term, he was for a long period a lover and successful 
cultivator of these plants, and it will be remembered that the remarkable 
Cirrhopetalum robustum (supra, I, p. 175) flowered in his collection in 
1893, having been discovered in New Guinea by his nephew, Captain 
Clarke. Three years ago he was the recipient of a Veitchian Medal 
for his services to horticulture generally. 
BEES AND FLIES CARRYING POLLINIA, 
Various observations on the removal of Orchid pollinia by insects have 
been made, and Darwin records no less than twenty-three species of 
Lepidoptera, which have been captured with the pollinia of Orchis pyrami- 
dalis attached to their heads, one example which he figures showing no less 
than seven pairs of pollinia attached one above another to the proboscis, 
giving it an extraordinary arborescent appearance (Fert. of Orch., ed. 2, pp- 
30, 31). Some observations recently made at Kew deserve to be recorded. 
Mr. Griessen, in charge of the Orchid house, has given me a common humble 
bee (Bombus terrestris) which he caught there, with three different kinds of 
pollinia attached to it. On the head, between the eyes, are two pairs, each 
with their stipes and gland, from some Odontoglossum ; on the middle of 
the thorax are the four pollinia of a Cattleya ; and on the back of the thorax, 
between the wings, are those from a flower of some member of the Vanda 
