PENTANDRIA, MONOGYNIA. 
101 
3. M. hairy ; s6eds retrorsely aculeate ; leaves ovate- virginiana.; 
lanceolate, acuminate^ racemes divaricate. — Willd, 
and Pursh. 
Virginian Scorpion-grass, 
About two feet high. Leaves large, oval, and scabrous. 
Flowers very small, white. Fruit covered with prickles. 
Above the Falls of Schuylkill, west side, in the woods ; very 
rare. Annual ? July. 
92. LITHOSPERMUM. Gen. pi. 244. ( Borragine<e.J 
Calix 5-parted. Corolla funnel-form, 5-lobed, 
orifice open, naked. Stigma bifid. Seed 
indurated, shining. (Stamina and style in- 
cluded within the corolla.) — Nutt. 
1, L. seed rough; corolla scarcely longer than the arveiise; 
calix ; leaves obtuse, without veins. — Smith. 
Icon. Eng. Bot. 1. 123. FI. Dan. 456. 
Field Gromwell. 
A rough or hispid plant, with white flo wers. Found in cul- 
tivated and neglected fields, but most abundant in the former. 
It injures the scythes and sickles of the reapers, by its siliceous 
cuticle. Introduced among grass seeds from Europe, but now 
naturalized. Annuah May till July. 
2. L. seeds protuberantly ovate, shining, every latifoiium. 
where deeply-pitted \ leaves ovate* oblong, nerved. 
— Mich. 
L. officinale, MuhL 
About two feet high. Very rarS in this neighbourhood ; I 
have only found it in shady woods several miles above the Falls 
of Schuylkill, and there sparingly. Flowers ochroleucous. 
Perennial. June. 
93. CYNOGLOSSUM. Gen. pi. 243. ( Borragins<^>) 
Calix 5-parted. Corolla funnel-formed, 5- 
lobed, orifice closed bv 5 connivent convex 
10 * 
