Zalacca. ZALACCA. 69 
ZALACCA. 
KEY TO THE SPECIES. 
(On account of the great dissimilarity between the male and the female spadix, 
it would have been desirable to have one key constructed according to the characters 
offered by the male spadix, and another according to those of the female spadix, and 
especially by the fruits; but to make this double key has proved unfeasible, 
owing to the circumstance thai in several species one or the other of the necessary 
organs are as yet unknown). 
A —EuzarAccA.— Ovary strigose or beset with sharply pointed, erect, stiff, almost 
hairy scales. Female spikes larger than the male ones, having two flowers at each 
spathel, one of which is female (or apparently hermaphrodite) and the other a male 
or neuter. Fruit clothed with spiculiferous or subulate scales. 
* Leaflets more or less sigmoid, whitish beneath and having the midcosta only 
spinulous above. Fruit clothed with scales having a spinuliform upturned tip. 
\ 
f Male spikes having the spathes connate into circular rings. 
§ Leaflets unequidistant. 
a. Male spikes elongate, flexuose, at first vermiform. and with 
appressed spaihels later subsquarrose or with slightly longer 
than the spathels ; the divisions of the corolla spreading gaping 
spathels. Male flowers during the anthesis. 
Leaflets narrowly lanceolate. Male spadix nodding 
or. trailing. 
f.. Z. edulis Reinw. (forma typica). 
Malay Archipelago. 
Leaflets linear. 
Z. edulis var. amboinensis 
Bece.—Amboina. 
Leaflets narrowly lanceolate. Male spadix with 
shorter branches than in forma typica. 
Z. edulis var. riowensis Becc.— 
Riow. - 
b. Male panicles erect cupressiform; male spikes vermiform, entirely 
exserted from the spathes; the spathels appressed, short, ring- 
like, with the wool of the special flower-bracts longer than the 
spathels and giving a tomentose appearance to the spikes. Male 
flowers with the division of the corolla spread open during the 
anthesis. 
2. Z. vermicularis Becc.—Borneo. 
