Chap. II] PERIODIC PHENOMENA IN THE TROPICS 259 



most part yellowish or copper-coloured ; the round ripe fruits, on long 

 stalks, appear all over the crown. In many places the fresh green of 

 young shoots glistens through the yellowish foliage. Pileostigma acidum 

 presents a similar appearance. Maniltoa gemmipara is dark green over 

 the greater part of its crown, but has a few white young shoots drooping 

 as in a flaccid condition. Resembling it are Jonesia declinata and 

 Cynometra sp. Amherstia nobilis exhibits all possible conditions, from a 

 bud that is resting to one that hangs flaccidly ; likewise from a red young 

 shoot to one that is hardened and green ; also all stages of inflorescence 

 are present ; but fruit is absent, being never formed here. The leafy crown 

 of Jonesia minor resembles that of Amherstia ; on the stem one sees 

 inflorescences in all stages, from the earliest bud to the mature orange- 

 yellow umbels, and fruits from the moment they protrude beyond the 

 corolla-tube to the over-ripe burst pods. 



SELECT LITERATURE. 



Belt, Th. The Naturalist in Nicaragua. 2nd edition. London, 1888. 



Brandis, Sir D. I. The Forest Flora of North -West and Central India. London, 



1874. 

 II. Bambuseae in Hackel, Gramineae. Engler und Prantl, Die natiirlichen 



Pflanzenfamilien. Theil II, Abth. 2. 1887. 

 III. Die Familie der Dipterocarpaceen und ihre geographische Verbreitung. 



Sitzb. d. niederrhein. Gesellschaft. 1896. 

 Cruger, H. Westindische Fragmente. I. Ueber Periodicitat in der Pflanze. 



Botanische Zeitung. Bd. XII. 1854. 

 Ernst, A. Botanische Miscellaneen. Botanische Zeitung. Bd. XXXIV. 1876. 



p. 38. 

 Haberlandt, G. Eine botanische Tropenreise. Leipzig, 1893. 

 Johow, Fr. I. Zur Biologie der floralen und extrafloralen Schauapparate. Jahrb. 



des konigl. botan. Gartens zu Berlin. Bd. III. 1884. 

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der Hohle del Guacharo. Kosmos. Bd. II. 1885. 

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I-IV. Mededeelingen uit 's Lands Plantentuin. 1894- 1897. Batavia. 

 Miiller, Fr. Bemerkungen zu Hildebrand's Abhandlung iiber die Lebensdauer und 



Vegetationsweise der Pflanzen. Engler's Jahrbucher. Bd. II. 1882. 

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Erdkunde. Berlin. XIX. 1865. 

 Trimen, H. A Handbook to the Flora of Ceylon. I-V. London, 1893- 1900. 

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1892. 



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