Undescribed plants from Guatemala. XI. 
JOHN DONNELL SMITH. 
Qe PANEM 
WITH PLATES XXI-XXIII. 
This paper includes descriptions contributed by various 
botanists, who are kindly assisting in the elaboration of the 
plants of the series. 
Capparis Heydeana (Subgen. CYNOPHALLA Eichl. in Fl. 
Brasil.)—Glabrate, axils eglandular: stipules minute; leaves 
obovate-oblong to elliptical-oblong (4-5 x 14-13"), acuminate, 
midrib excurrent, base acute, canaliculate petiole an inch or 
more long: flowers from axils of reduced leaves composing 
terminal short racemes; pedicels stout, exceeding petioles, 
apex incrassate: sepals oblong (8—10)), obtuse: petals obovate- 
spatulate (21—23 x 1"): stamens scarcely as long, 6; carpophore 
equalling petals, ovary 2-locular: glands of disc distinct, tri- 
angular. —R emarkable in the genus by the large petals and in 
the sub-genus by the few stamens. — Prof. Radlkofer, to whom 
this plant was submitted for comparison, calls attention to the 
accordance of its anatomical characters with those of Cyzo- 
phalla; he observes the presence of soluble crystals in the 
cells of the upper and lower epidermis of the leaf such as oc- 
cur in C. Cynophallophorus L., C. polyantha, Tr. et Planch. 
and other allied species (cf. Vesque in Ann. sc. nat. 6"* Sér. 
103, t. xiii). —Tree 30-45" high, mountains overhanging Lake 
Ayarza, Depart. Jalapa, alt. 8,400", Sept. 1892, Heyde & 
Lux, (ex Pl. Guatemal. qu. edid. J. D. S. 4,112). 
Xylosma Quichense.—4Arborescent (10-1 5*5), unarmed, 
pubescent: leaves oblong-elliptical (33-5 x 1—13^), contracted- 
acuminate, base obtuse, upper surface shining and except- 
ing nervessmooth, incurved-serrate, shortly petiolate: racemes 
solitary or 2—3-fasciculate, simple or paniculate, 3-6 times 
15— Vol. XVIII—No. 6. ; 
