196 BOTANICAL GAZETTE [September 



Angles of stems not prickly. 



Branches 2 to 6*^"" long; all but the earliest leaves alternate; corolla 



1 to 3*="* across, blue ----- 3. N, phacelioides 

 Branches 0.5 to 2^°^ long; only the upper leaves alternate; corolla i to 



2 ^^ across, violet with whitish green-spotted center - 4. N, Kirtleyi 

 Leaves mostly opposite ; seeds usually 5 or more. 



Corolla white with a dark purple spot at the tip of each lobe; scales 

 oblong, half free, rolled toward the filaments - 5. N, mactdata 



Corolla blue or white without a spot at the tip of each lobe. 



Corolla deep or pale blue, often veined with deeper blue and dotted 

 toward the center ; scales mostly broad, wholly adherent or free at 

 the tip ; cotyledons spatulate - - - - 7. ^V. Me7i2iesii 

 Corolla white or pale blue. 



Cotyledons spatulate; corolla-scales linear, wholly adherent. 



8. N. Mensusii atoma^ia 



Cotyledons with orbicular or oval blade; corolla-scales oblong or 

 linear, part free - - - - q. A^ Me7t::iesit integrifoHa 



Flowers r ^™ or less across. 



Corolla tubular or tubular-campanulate. 

 Corolla equaling or longer than the calyx. 



Leaves opposite ; seeds more than i ; Pacific coast. 



Leaves oblong (rarely ovate) in outline, pinnately 5 to 7-lobed ; 

 corolla-scales linear, often reduced to hairy lines; seeds 2 to 12 



(mostly 6 or 8) w, N. pedimciilata 



Leaves spatulate in outline, 3 to 5-toothed or -lobed at the tip, with 



cuneate base; corolla-scales small and laciniate, or obsolete. 



12. N, spatitlaia 



Leaves mostly ovate in outline, pinnately about 5-lobed, the upper 

 3 lobes confluent; corolla-scales mmute, various. 

 Plant hispid; lobes of leaves usually sharp; peduncles mostly 



W 



California 



- - 13. A^- parviflora 

 Plant with softer, spreading pubescence ; lobes of leaves more 

 rounded, the lower sinuses shallower ; peduncles mostly exceed- 

 ing the leaves; foothills of the southern Sierra Nevada. 



14. A", parviflora qiiercifolhx 



Leaves alternate, mostly triangular-ovate, 3 to 5 -lobed ; seeds mostly 



I or 2 ; southern U- S, 



N. 



Corolla mostly shorter than the calyx; leaves mostly alternate ; seeds 1. 



N. 



Corolla open-campanulate or pelviform. 



Leaves opposite, oblong in outline, with 5 to 7 oblong lobes pinnately 

 arranged; corolla mostly open-campanulate, not hairy within; scales 

 linear, often reduced to hairy lines - - • 10. A^. sepultix 



V 



L 



