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The most frequently occurring systems are: 2 + 3, 3 + 5, 2 + 3 + 5, 

 and 5 + 8. The first occurs in very feeble spikes of different species. It 

 is the regularly found leaf-position in C. Zedoaria and C. aeruginosa, where 

 the number of bracts is small (from 13 to 28), the axis rather slender 

 and the bracts with their long pouches are far apart. Here the three first 

 bracts form a spurious whorl, the 4th, 5th and 6th, the 7th to the 9th also, 

 in such a way that the 4th comes between the second and the first; the 7th 

 between the 4th and the 5th, etc. 



The second case occurs often in the thick dense spikes of C. purpurascens 

 of 30 —65 bracts, however less often than the third; but it is not sure 

 whether in reality there is still a contact in the twocurve, only the full- 

 grown pouches having been observed by me. The 9th bract lies rather 

 exactly above the 1st, the 8th and 13th spiral are very distinctly visible; 

 the parastichous angle of the 3rd and 5th curves however, is very blunt. 



The last case, where the lowest spurious whorl consists of 8 leaves, 

 which form 8 distinct contact parastichies, occurs in the very regular spike 

 of more than 80 bracts of C. petiolata. 



2. Flower: The flower consists of the following parts: 



1st: The calyx, which is about half as long as the tube of the 

 corolla, thin-membranous, tubular, connected very firmly at its base with 

 the corolla-tube and more or less dilated upwards. The upper margin is 

 divided into three unequal, very short teeth and dorsally cleft nearly half-way 

 down. The two largest teeth have a hairy small somewhat protruding crest 

 or are truncate, or rounded; the smallest toothlet is blunt and connected 

 almost entirely with one of the others. In the two Java species of Porac«/-cu/7za 

 they are much larger than in Eucurcuma, very unequal and rounded. More- 

 over the whole calyx is there hirsute; so that only by the calyx these two 

 species are readily recognised. 



In the subgenus Eucurcuma, however, 1 have found the calyx of little 

 value for determination of the species. In C. euchroma and in C. Zedoaria, 

 for instance, 1 found specimens differing conspicuously in having the calyxteeth 

 now broader now narrower, shorter or longer, acute or blunt. 



2d: The corolla, united with the staminal-apparatus congenitally over 

 its whole lenght. It has about the shape of a stalked cup (the tube with 

 the faux) on the margin of which (using the common expression) the three 

 petals are inserted and which continues inside of these into the lip at the 

 front and into the stamen with the staminodes at the back. 



The petals are of an other, somewhat more membranous consistency 

 than the rest, they are confluent with the outer layers of the tube-tissue, 

 so they may be pulled off leaving the other parts seemingly undamaged. 

 Their colour is pellucid-white (C. purpurascens), pale-pink (C. viridiÛora) 



