176 
Journal of Agricultural Research 
Vol. I, No. 2 
thin and dry, probably slightly fleshy when nearly ripe, splitting tardily along the 
ventral suture. Three or four pairs of shallow concentric furrows sometimes radiate 
from the base. Stone rounded oval with apiculate apex, smooth, with a slight ven¬ 
tral ridge and a faint dorsal 
furrow. 
Prunus microphylla is 
intermediate between P. 
fasciculata and P. minu- 
tifiora , but differs from 
both in the glandular leaf 
serrations. The absence 
of stomates in the upper 
surface is a noticeable 
difference from P. fasci¬ 
culata and would ally this 
species most closely with 
P. minuiiflora. 
HAVARD’S ATMOND 
Prunus havardii W. F. Wight, 
n. comb. 1 * * * (PI. XVI.) 
This species, the least 
known of the group, was 
recently described by Mr. 
William Franklin Wight, 
Fig. 8 .—Prunus microphylla Hems.: A, Section of staminate flower, *7 
showing well-developed stamens and abortive pistil, X3; B, detail Bureau 01 Jrlailt 1 I 1 Q 11 S- 
of calyx from outside, X 3; C, twigs showing leaves and fruit, from £ r y from Specimen No. 
herbarium specimen, natural size; Z>, fecundated ovary, X 3- _ , 
138851, United States 
National Herbarium, collected by Dr. V. Havard, United States Army, in 
July, 1883, at Bone Springs near the Chisas Mountains. This locality is 
1 “ Amygdalusharvardii W. F.Wight, sp.nov. heavesobovatetooblong-obovateorsometimesfan-shaped 
on young growth, 7 to 20 mm. long, 3 to 10 mm. broad, glabrous or sometimes finely pubescent on both 
surfaces, usually somewhat pale below and under a lens rather prominently reticulate veined, the margin 
conspicuously dentate toward the apex, very rarely toothed below the middle, the teeth usually acute 
and apparently glandless. Flowers appearing with the leaves and sessile; calyx slightly pubescent, the 
tube about 2.5 mm. long, the lobes scarcely more than 1 mm. long, entire and obtuse; petals not seen. Fruit 
sessile, nearly globular, the pubescent exocarp dehiscent along one edge, when dry about 9 mm. long, 7 mm. 
broad, and 7.5 mm. thick; stone about 8 mm. long, 6.5 mm, broad, and 7 mm. thick, rounded at the base 
and slightly pointed toward the apex, the surface smooth except for indistinct grooves near the ventral 
edge. 
A shrub with rather rigid branches, stout spinescent branchlets, and light gray bark. The type speci¬ 
men in the United States National Herbarium was collected in fruit by V. Havard in July, 18S3, in western 
Texas, east of the Chisas Mountains, near Bone Springs. It was also collected by C. C. Parry, J. M. Bige¬ 
low, Charles Wright, and A. Schott on the Mexican Boundary Survey under the direction of Major W. H, 
Emery, this specimen being labeled * chiefly in the valley of the Rio Grande, below Donana/ The species 
is most closely related to Amygdalus microphylla H. B. & K. of Mexico, but is easily distinguished by its 
broader, more obovate leaves as well as by their reticulate venation and eglanflular margins. 5 ' Wight, 
W. F. North American species of the genus Amygdalus. Iceland Stanford Jr. Univ., Dudley Memorial 
Volume, p. 133, 1913. 
The spelling of the specific name harvardii is a typographical error, as the type specimen was collected 
by Dr. V. Havard. 
