Tabula 2836. 



SYCOPSIS DUNNII, Hemsl; 



Hamamelidaceae. 



S. Dunnii, Hemsl, {sp. noi\) ; ab S, sinensis D. Oliv., floribus femineis 

 baud capitatiS; ab S, TutcJieri, Hemsl., foliis acuuiinatis recedit. 



Arbor 9-10 m. alta ; rami florigeri graciles, primum lepidoti, cortice 

 cinereo. Folia petiolata, crassa, coriacea, lauceolata vel ovato- 

 lanccolata, 6-12 cm. longa, utrinque attenuata, integra, cito glabrescentia, 

 supra nitida, subtus pallidiora. ^tommamonadelpha (?). Pistillodium 

 ad stylos 2 breves redactum, Receptaculum florum femineorum 

 urceolatum, circiter 5 mm, longum, densissime lepidotum, Icpidibus 

 multidentieulatis vel fimbrillatis, ovoideum, bracteolis paucis oblongis 

 obtusis apice ciliolatis irregulariter instructum, Sepal<i{^ 1-3, brac- 

 teolis simillima. Ovarium densissime sericeo-pilosum^ pilis stellatis 

 radiia longissimis ; styli glabri, longissime exserti, revoluti. Capsula 

 globoso-ovoidea, circiter 1 cm. diametro maximo, dense ferrugineo- 

 pilosa, receptaculo irregulariter rupto suffulta. 



China : Fokien ; S. T. Dunn, Hh. Hongh 533, 2695. 



The genus Sycopsis, D. Oliv., was founded (Trans. Linn. See. 1860, 

 vol. xxiii. p. 83, t. 8) on S, Griffilhiana, an inhabitant of the Khasya 

 mountains, and the only species hitherto found in India. The specimens 

 were imperfect, wanting both in fully developed male flowers and fruit. 

 A second species, S. sinensis, D. Oliv. (Hook. Ic. PI. 1890, vol. xx. 

 t. 1931), was also deficient as regards male flowers. Mr. E. H. Wilson 

 collected very complete specimens of S. sinensis, and these have thro^^*n 

 a new light on the structure of the male flowers. A male inflorescence 

 and a separate flower, entire and in section, are included in tab. 2834, 

 from which it will be seen that in the male flowers, as well as in the 

 female flowers, there is a well- developed, urceolate receptacle (or 

 calyx- tube) on the margin of which the deciduous sepals are seated. 

 The stamens are perigynous, and there is a prominent pistillode. In 

 Distylium the flowers are not so highly organised, no receptacle (or 

 calyx- tube) being developed, and the number of segments of the 



more or less imperfect unilateral perianth is inconstant. See under 

 tab. 2835. 



Fig. 1, a flower-bud with bracteoles on the receptacle ; 2, stellate scales from 

 the receptacle ; 3, androocium, found adhering to the specimen, but it is not 



