101 
This is to ask those who meet with this anomaly to notice, where 
they meet with it, whether it occurs in more than single plants, 
and whether accompanied by the two plants. 
ASA GRAY. 
Note on Bahama Grass. Itis generally believed in Jamaica that 
the Bahama Grass—Cynodon Dactylon—so common in all parts 
of the Island, even in the hightest mountains, does not produce 
perfect seeds. This opinion has lately been demonstrated at the 
Government Cinchona Plantations as erroneous, for from ripe 
seed gathered there some time since, a large quantity of well 
developed seedlings have been raised. The planting of lawns 
with this grass has for a long time been a serious expense when 
the stolons or roots of the grass have to be dibbled in, but this can 
now be dispensed with, for in favorable weather on the plains, a 
lawn could be covered with this grass from seed in a very short 
time, and would certainly produce a turf more regular and per- 
manent than that produced by planting tufts at regular intervals. 
Sabal umbraculifera, Griseb. This palm is now recognized as 
being distinct from the Bermuda Palmetto, Sabal Blackburn- 
tana—S. umbraculifera, Mart., which is beautifully figured and 
described by W. B. Hemsley, Esq., A.L.S., in the Botany of the 
Voyage of the Challenger. The principal points of distinction 
appear to be in the size of the berries, those of S. Blackburniana 
being much larger than those of the Jamaica Palm. Grisebach 
appears to have adopted Martius’ name in error, for the Jamaica 
species. J. HART, 
Supt. Govt. Cinchona Plantations, 
Teratological. have found in my yard a seedling plantlet 
of Acer platanoides with three cotyledons, and have a plant of 
Podophyllum peltatum which, instead of the usual flower-bud 
terminating the stem, has a minute erect leaf not peltate, as the 
normal ones are. W. W. BAILEY. 
Monstrosity in Iris. A new monstrosity observed in the 
flowers of the genus /ris by C. Massalongo. (Nuovo Giornale — 
Botanico Italiano, xviii., pp. 155-156; plate X.) For two suc- 
cessive years a hybrid form has been found which is probably a 
cross between /ris squalens and /. florentina. Floral diagrams 
are given showing dimerous, trimerous, tetramerous and penta- 
