CATALOGUE. 81 
Some forms resemble G. Fremontii closely, South Park, Colorado, 
(759), Utah. 
Eropium cicurarium, L. Her.—Santa Fé, N. Mex. (36 a.) 
OxaLis vioLacea, L.—Mount Graham, Arizona, at an altitude of 9,250 
feet. (437.) 
RUTACE. 
Canorra* HoLocantHa, Torr. (in Pacific R. R. Rep. iv, 68). Benth. 
and Hook. 1, 616.—A much branched, leafless tree, 20° high and trunk 1° 
in diameter; branchlets yellowish-green, delicately striate; sparingly dotted 
with very minute brown scales, which represent reduced leaves; flowers 
white or yellowish white; pedicels articulated ; bracts small and scale-like ; 
minute cil-glands sparingly seen on the bracts, sepals, and petals. Gila Val- 
ley, Arizona. (323.) Parte I.+ 
From Camp Bowie, Arizona, I have (499) a Pretza, probably anaus- 
TIFOLIA, Benth. 
CELASTRINEZ. 
Pacuystima MyrsiniTes, Raf.—Utah, 5,000 to 7,000 feet altitude. Quite 
recently, the indefatigable Mr. Canby has brought to light a second species 
of this genus (P. Canbyi, Gray), in Giles County, Virginia. “While the 
original P. Myrsinites occurs plentifully in most wooded districts from the 
Can Torr.—* Flowers hermaphrodite. Calyx small, 5-lobed, persistent; the broad lobes 
imbricated in ane ml _ Petals 5, hypogynous, oblong, very obtuse, at base with a broad insertion, im- 
bri 
opposite to the calyx lobes: filaments subulate, somewhat shorter than the petals, persistent: anthers 
oblong-cordate, introrse, affixed to the filaments in the acute apex of a deep sinus, apiculate with a small 
mucro; cells inwardly longitudinally dehiscent. Dried pollen becomes 3-horned when moistened. Disk 
none. Ovary placed on a gynobase (at first thicker than itself ), 5-celled, the thick style at length elongat- 
ing: stigma small, slightly 5-lobed; cells of the ovary opposite to the petals. Ovules in the cells most 
frequently 6, subhorizontally ‘ented in two series in the inner angle [amphitropous]; micropyle infe- 
‘rior, Capsule ovate-fusiform, somewhat woody, covered with a delicate, somewhat fleshy epicarp, 
5-celled, 10-valved at the apex (at first septicidal and later loculicidal), terminated by 10 split portions 
of the persisting style; columella none. Seeds 1-2, my: the cell, HE subovate, flattened ; testa 
subcoriaceous, thickly papillulose, produced below into a broad membranous wing somewhat emai 
than the nucleus. Embryo straight, in a thin layer of fleshy statin ; cotyledons oval, flat; the short- 
ish radicle inferior.” My own specimens showing only the flowers ind immature fruit, I have been 
obliged to quote the above from Dr. Gray’s complete description, recently published in Proc. Amer. Acad. 
xii, pp. 159-160. 
} natural size. Fig. 1. A cross section of a flower. Fig. 2. An open flower. Fig.3. A 
longitudinal sietiin, of flower. Fig. 4. An inside view of stamen. Fig. 5. An outside view of stamen. 
Fig. 6. The young fruit; petals fallen and filaments remaining. Fig. 7. A vertical section through a 
young ovary. Fig.8. A young ovule. Fig. 9. A vertical section of mature fruit. Fig. 10. A crosssection 
of fruit. Fig. 11. A seed. Fig. 12. A diagonal section of aseed. All except the branch magnified about 
five diameters. 
6B 
