Tap. 8071. 
CALLOPSIS Vorkensit. 
German East Africa. 
AROIDEZ.—Tribe ZOMICARPEE ? 
Cattopsis, Engler in Notizblatt Kénigl. Bot. Gart. Berlin, vol. i. p. 27. 
Callopsis Volkensii, Hngler loc. cit. et in Pflanzenw. Ost-Afr. vol. C, p. 
131; N. £. Brown in Dyer, Flora of Tropical Africa, vol. viii. p. 186; 
species unica. 
Herba acaulis glabra. Foliorum petiolus 1}-5 poll. longus, supra canalicu- 
latus; lamina 33-53 poll. longa, 2-3} poll. lata, elongato-ovata vel 
oblongo-ovata, obtusa, apiculata, basi cordata. Peduneuli 3-3} poll. 
longi, erecti. Spatha e basi expansa, 1-1} poll. longa, 2-1 poll. lata, 
elliptica, apiculata, alba. Spadia quam spatha brevior, lutea parte 
feminea spathe adnata. Flores unisexuales, nudi: feminei 3-12, sub- 
biseriati; ovarium oblique conoideum vel anguste elongato-ovoideum in 
stylum brevem attenuatum, uniloculare, uniovulatum; stigma parvum; 
ovulum subbasilare, anatropum, erectum: masculi in spicam cylindricam 
obtusam dense conferti; anther sessiles, subquadrate. 
The interesting plant here figured was discovered by 
Dr. Volkens growing at the foot of trees in the forest on 
Mount Msasa, between Nderema and the River Sigi in 
German East Africa. It was first introduced into the 
Royal Botanic Gardens at Dahlem, near Berlin, whence a 
plant was received at Kew in 1905, and it commenced to 
flower in September, and continued for over three months. 
Probably it will prove of considerable value from a 
horticultural point of view, on account of the persistence 
of its pure white spathes, which are freely produced, and 
contrast well with the dark green foliage. It requires 
stove treatment, similar to that given to the various species 
of Schismatoglottis. 
Dr. Engler places Callopsis in the tribe Pothoidex, but 
as its floral structure is very similar to that of Zomi- 
carpella, except the inappendiculate spadix, I think it 
would be placed better next in the same tribe, or as a 
distinct monotypic tribe of its own, based on its non- 
tuberous habit and absence of anappendix. In the totality 
of its characters it is intermediate between the tribes 
Zomicarpexe and Philodendreex. 
Descr.—A stemless perennial herb, with a short branch- 
Aprit Ist, 1906 
