200 
EOYAL HOETICULTURAL SOCIETY. 
last season by the 1st of June, about fifteen days earlier than the 
White Italian Tripoli, which variety in the late trial it most nearly 
resembled. Many large and later-growing examples were observed 
in each sample, which, if the seed was not mixed, implies a 
tendency to deterioration. In this, as in other respects it exactly 
resembles the Nocera as introduced from Italy about thirty years 
ago, and the Florence White of earlier date. 
N.B. — All the section of Silver-skinned Onions, including the 
Queen, White Italian Tripoli, Marzajola, Nocera, Paris Silver- 
skin, Early White Naples, and White Lisbon, also the Giant 
Tripoli section, including the Giant Eocca, Eed Sallow, Madeira, 
&c., which are found valueless as spring-sown varieties, will form 
the subject of a separate report when their respective merits have 
been tested as autumn or winter- sown Onions. 
17. Potato Onion. 
Synonym, — Underground Onion. 
This is not propagated by seeds. The small bulbs are planted 
in the ground like Shallots, and around these a number of new 
bulbs are produced. These bulbs are of average size, of somewhat 
irregular shape ; the skin reddish brown, hanging very loosely. 
The flesh is tolerably firm and solid, and of fair quality. It does 
not keep well, but is useful for procuring an early supply of 
Onions. 
18. Egyptian, 
Synonyms. — Egyptian Bulbiferous; Tree Onion; Garden Eocam- 
bole. 
This variety when planted throws up a stem on which, instead 
of flowers, small bulbs are produced of about the size of small 
marbles, which are very excellent for pickling. It is propagated 
by planting these bulbules (the largest of which will bear bulbs 
the same season), or by the bulbs which are formed in the ground, 
and which have not formed stems. 
19. American Perennial Tree^ or Top Onion (Carter & Co.) 
This produces small bulbules in the same manner as the Egyptian 
Bulbiferous, but of a much smaller and inferior character. No 
bulbs are formed in the ground. The plant is perennial ; the 
roots are long and fibrous. 
