BORAGINACEAE 1121 
form or salverform. Filaments unequal, 4 of them didynamous.—About 12 
species, South American. 
Corolla small, the limb less than 1 cm. wide. 1. P. parviflora. 
Corolla large, the limb over 2 cm. wide. 
Cor Ae white; tube cylindric, 3 or 4 times as long as the 
2. P. axillaris. 
Corolla. reddish- oo tube eampanulate, once or twice as 
ng as the e 3. P. violacea. 
1. parvifiora Juss. d pubescent: stems 1—4 dm. tall: leaf- blades 
spatulate 2 P iue 1.5 e . long: calyx glandular-pubescent; lobes linear 
lin uch ones: aed the » 
tube po bou 5 mm. long; limb 
6-8 mm. wi 
ad long; abruptly pointe: capsules ovoid, 
3—4 m oil, waste- ps and 
cult. gro ur. Coastal Plain, and Basin-and- 
ng 
—(W. Ï., Mex., C. A., S. A.) —Spr.—fall. 
2. P. axillaris (Lam.) da Stem and 
branches rather stout, clam my-pubescent: 
leaf- blades elliptie to ovate-ellipt ic, 3-6 em 
ong, those of E lower leaves with stout 
petiole-like bases: calyx 1.5-2 cm. long; 
lobes mostly elliptic: corolla white, almost 
salverform; limb mostly 4-6 em. wide.— 
Cult, grounds and waste-places, E U. S. Nat. of Argentina.—Sum. 
3. P. violacea Lindl. Stem and branches slender: leaf-blades n nA K oval, 
varying to obovate or ovate, 2-5 em. long, those of the lower ones ender 
petiole-like bases: calyx about 1 em. long; aie linear to Eu 
corolla reddish. -purple, funnelform; limb 3-4 em. wide.—Roadsides ig waste- 
plaees, E U. S. Nat. of Argentina and cult. ke fall, or all yea 
Faminy 7. BORAGINACEAE — Borage FAMILY 
erbs or shrubby plants, oe ark usually bristly pubescent. Leaves 
ase. blades mostly entire. Flowers typieally perfect, the spikes or 
a : 
ciu 
the style arising from between the Frui 4 or fewer nutlets.— 
About 85 genera and 1,500 species, widely distributed. 
Flowers regular: corolla with equal lobes. I. BORAGEAE. 
Flowers irregular: corolla with an oblique limb and unequal lobes. II. Renin, 
I. BORAGEAE 
Nutlets armed with barbed prickles 
Nutlets Pae covered with ‘pric ckles 1. CYNOGLOSSUM. 
nu ets ect or incurved, with prickles on the back of 
ngies. 2. LAPPULA. 
Nutlets unarmed. 
eceptacle conic or e s .9. AMSINCKIA, 
Receptacle flat or mere 
ponds attached Aa M ET ue receptacles: free por- 
tions of the filaments elongat 4. MERTENSIA, 
Nutlets attached to the ce e by their bases: free 
portions of the filaments very short. 
71 
