W ATSON—Plants of Bernalilio County 
leaflets oblong, petals very short, stipitate; pod 1 im 
long or more, 1-4 to 1-3 in. wide. Mesa, common. 
April and on. 
H. prepanocarpa, Gray. Low with many short (1 to 
2 in.) slender stems rising from a thick woody root and 
terminating in a peduncle 6 in. long, 4 to 10 pairs of 
leaflets, about 1-4 m. long. Otherwise as last. ‘“‘Albu- 
querque 7-26, 1898.” (Weinzirl). 
42. ROSACEAE. Rosr Famtry. 
Herbs, shrubs, or trees, with alternate mostly stip- 
ulate leaves, regular flowers, mostly numerous stamens 
inserted on the calyx and one to many pistils, distinct 
and free or coherent with each other and the ealyx 
tube. 
$1. Ovary superior and not inclosed in the calyx tube 
at maturety. 
*Calyx deciduous without braetlets; pistil solitary, be- 
coming a drupe. 
Tube 1. Prunzaz. Trees or shrubs with mostly ser- 
rate leaves, 2 ovules but usually a solitary seed and a 
terminal style. 
1. Flowers perfect; lobes of ealyx and corolla 5; 
stone of drupe bony, - - - (1) pRUNUs. 
*** Calyx mostly persistent ; few too many (rarely soli- 
tary’) pistils. 
*Calyx without braclets; ovules 2 to many 
TRIBE II. SPIRAEEAE, Shrubs or perennial herbs, with 
mostly 5 pistils which become 2 to several seeded pods. 
2. Usually erect and more or less diffuse shrubs 
with serrate or lobed corymbose or paniculate inflor- 
escence and a 1 to several-seeded Peo, which may be 
very tardily dehisent, - - SPIRAEA. 
3. Shrubs with palmately- -lobed leaves, corymbose 
flowers and inflated membraneously dehiscent. pods, 
o/b - - - - - -  PHYSOCARPUS. 
Trise 111. Rubeae, Herbaceous or with biennial soft 
woody stems, with the several or numerous pistils be- 
coming drupelets in fruit. 
4, Pistils numerous, anh in fruit, crowded upon 
a spongy receptacle, - - +) ie) TS, 
e*Calyx-lobes mostly with beanies ovule solitary. 
TRIBE Iv. PoTENTILLEAEA. Herbs, shrubs or trees 
with few to many-ovuled pistils becoming dry achenes. 
A. Suruss. Styles elongated and plumose wm fruit; 
calyx wmbricated. 
(66) 
