606 cxxii. EUPiiORUiACEiE (bkown). [Dichostemma. 



stamens, and nu inner series of 4 alternatini^ with the outer and converged into 

 glands, surroundinj; in some of the terminal involueies a ))erfect female flower, in 

 the otliers a very rndimentary abortive fennile Hover, reduced to a very short solid 

 square centrsd body. 



]. D. glaucescens, Pierre hi Bull S'oc. Linn. Paris, 189G, 1260. A 

 small slender tree {Bates), said to be climbing (/'/erre), 18-25 ft. high, with 

 Miilky juice. Leaves alternate, coriaceous, glabrous, apparently shining 

 above, with or without (at least not always visible on dried specimens) a 

 glaucous bloom beneath; petiole J-J in. long; blade 2|-6J in. long, 

 1-2 J in. broad, oblong, elliptic-oblong or slightly obovate-oblong, 

 abiuptly to somewhat gradually acuminate into nn obtuse linear tail- 

 like point J-4 ii>. long at the apex, acutely or roundedly cuneate at the 

 base; midrib impressed above, prominent beneath; pi imary veins 6-8 

 on each side of the midrib, connected in a series of broad loops 1-2 lin. 

 from the margin, prominent beneath. Panicle terminal 3-16 in. long, 

 pyramidal witjb numerous branches or (on weak shoots) corymb-like 

 with few branches, all parts, including the involucres, covered with 

 minute dense and somewhat powder-like but persistent tomentum,or 

 the branches becoming more or less glabrous ; branches usually 2-4| in. 

 long, smaller on weak specimens, 2-4 times forked, a-cending or 

 ascending-spreading. Bracts falling off before the involucres mature, 

 leaving conspicuous opposite scars, deeply concave-oblong, obtusely 

 rounded at the apex, 1-1^ lin. long, 1 lin. broad. Involueies of a 

 panicle all male or the terminal one of some of the branchlets bisexunj, 

 cup-like, obtusely 4-angled, truncate, about y\j in. deep nnd \-\ in. 

 square when fully expanded, green [Bates), when dried slightly fulvous 

 or greyish-brown, with the partition-like glands blackish. Male flowers 

 glabrous; perianth ^ lin. long, cup-like, slightly and irregularly toothed. 

 Female flower erect from the centre of the involucre on a stout pedicel 

 |-] lin. long, everywhere covered with minute tomentum like that on 

 the involucre ; perianth very shortly cupular, about ^ lin. long, obtusely 

 4-angled, truncate, minutely ciliate; ovary obtusely 4-angled ; styles 4, 

 stout, recurving over the top of the ovary, channelled on their upper 

 side, emarginate or shortly bifid at the apex. Fruit |-| in. long and 

 1-1 J in. in diam., depressed, with 4 obtusely rounded lobes, covered 

 with minute tomentum, brown or dull purple. Seeds ellipsoid or sub- 

 globose, o-5| lin. long, 4-5 lin. thick, smooth, without a caruncle, 

 brown. — D. amplum, Pax in Engl. Jahrb. xliii. 825. Dichostema 

 Zenkeri, Pax in Engl. Jahrb. xxviii. 25. 



Upper Guinea. Camcroons: Bipindc, Zenker, 1774! 1842! 2564! 2o64a ! 

 8012! 3549 : 



Xiower Guinea. Gaboon: Munda; Sibange Farm, 6^o^a w.r, 126 ! Libreville, 

 Klaine, 281 ! 1221 ! Angom, Bates, 555! 



Soutb Central. liclgian Congo : Yamhuya, on the Kiver Aruwimi, 

 Mildbraed, 3306 I 



The dense indumentum on the inflorescence, although somewhat powder-like, 

 does not rub off. It does not consist of hairs or po\\der, bnt of very minute globose- 

 inflated cells, as seen nntler a compound micruscopc. I can tind no distinction 



