200 The Botanical Gazette. [June, 
quam maxime JWizemeric affini, sed Asiz incola (ex Forbes 
et Hemsley in Jour. Linn. Soc. XXII. 125 monotypico) 
quod Hooker filius. *'7' vipterygium" nominavit (T. Wilfordii 
Hook. f£). In quibusdam veroa nonnullis inter Celastrineas 
adscitarum Zppocrateacearum stirpibus taliscumque materia. 
obvia est, uti nuperrime D. Solereder observavit (ex. gr. in 
Salacia micrantha Peyr. et in truncis quibusdam a H. Schenck 
sub. n. 347*, 519 et 632 missis, Sa/acie et Hippocrate gener- 
ibus, ut videtur, adscribendis (quorum unus, n. 632, in Engl. 
& Prantl Pflanzenfam. a D. Niedenzu sub 7a/pzg/acezs, Fig. 
37 A et B, depictus est). Suo loco D. Solereder ipse hanc 
rem (nec a Th. Loesener sub Zfecrateaceis in Engl. & 
— Prantl Pflanzenfam. 1892, nec a H. Schenck in Anat. Lian. 
Il, 1893 indicatam) fusius traclabit. (L. Radlkofer.)—Tree 
30* high, slopes of the volcano Jumaytepeque, Depart. Santa. 
Rosa, alt. 6,000*, Sept. 1892, Heyde & Lux (ex Pl cit. 
3,708). 
RHAMNUS CAPREJEFOLIA Schlecht., var. diseolor. —Leaves 
somewhat coriaceous, upper surface excepting veins glabrous, 
the lower cano-velutinous.—Coban, Dept. Alta Verapaz, 
alt. 4,300*, Aug. 1885, von Türckheim, (ex Pl. cit. 710); 
distributed as typical. No. 3,051 of the series is more true 
to the description. 
THOUINIA ACUMINATA Watson, var. pubiealyx Radlk.— 
Calyx pilis adpressis dense cano-pubescens.—A tree 2 $-3Q" 
high; mountains around Lake Ayarza, Dept. Jalapa, alt. 
8,800* Sept. 1892, Heyde & Lux, (ex Pl. cit. 3,955); Volcan 
Jumaytepeque, alt. 6,000", Nov. 1892, Heyde & Lux (ex. 
Pl. cit. 4, 122). 
HELODISCUS ARGENTEUS Maxmw. (Spirza argentea Mutis), 
var. ? hbifrons Focke. —The genus Ze/odiscus is distinguished 
from Spirza by its indehiscent carpels. This important 
character is associated with a peculiar habit, and it will there- 
fore be advisable to keep the two genera separate. The 
North American Z/. discolor Maxmw. (Spira discolor Pursh, 
5. ariefolia Sm.) is a very variable plant, and its sub- 
species dumosa Wats. looks like a different species approach- 
ing the Z. argenteus by its narrow leaves. In the typical H. 
argenteus the leaves are silky above, but very likely this 
. Character is not constant. n our plant, as in other Guate- 
mala specimens that I have seen, the upper surface of the 
. . leaves is glabrous (var. &frozs). t has larger flowers than 
