28 
VERBENACEAE. 
Stachytarpheta dichotoma Vahl. 
Legit Weernuizen, Batavia, January 1919. 
Fasciation of the inflorescence with repeated dichotomy. 
Stachytarpheta jamaicensis Vahl. 
Legit J. G. B. Brumiéz, Njarengan, Java, October 1917. 
Spica apparently racemose Fig. 35a, but in fact with length- 
ened thalami densely covered with bracts (4). The cavities 
in which the normal flowers closely fit are in the abnormal 
specimens much shallower and support only a small portion 
of the so strangely transformed flower. Bracteomania. 
LABIATAE, 
Hyptis brevipes Poit. 
Legit C. A. Backer, Djember 1914. 
Habitat hot regions of America, runs wild on Java (Mi- 
quel 3, p. 959). 
From the axils of the higher leaves springs a stalked headlet 
of a regular reniform shape, densely covered with little flowers 
supported by bracts of which the lowermost are pressed down 
and constitute an involucre whereas the higher are much less 
developed and do not surpass the florets. 
Normally these inflorescences show an average length of 8 
m.m. and a width of about 6 m.m., the peduncle having a 
length of about 8 m.m. The florets are sessile, show a tubular 
calyx with straight teeth and a corolla of 2 mm. protruding 
only the two longer stamens. 
Our figure 36 represents an abnormal inflorescence, twice mag- 
nified. Apart from the irregular shape it shows a striking 
hypertrophy. The headlet, uncounted the stalk, has a length of 
45 and also a width of 45 m.m., consequently a fortyfold sur- 
face of that of the normal headlet. 
This enlargement affects also the bracts, the pedicelli and 
the florets. About the bracts our figure admits of a sufficient 
