SCROPHULARIACEA 167 



Calyx about equally cleft before and behind: floral bracts more or less dilated, red vary- 

 ing to yellow or whitish. 



Galea (upper lip) as long or longer than the tube, lip very short 4, 5, 6 



Galea hardly as long as tube: leaves linear, entire, white- woolly 7 



Galea much shorter than tube, about twice as long as the lip , . . 8, 9 



1. 0. Btenantha, Gr. Slender: corolla 1-1 in. long. Cent, to S. Cat 



2. 0. afflnis, H. <fc A. Calyx cleft twice as deep before as behind. Cal. Coast 



3. 0. linearifolia, Gr. Calyx cleft much deeper before. S. N. Mts. 



4. 0. latifolia, H. & A. Diffuse, viscid- villous: leaves broad, obtuse. Cal. 



5. 0. parviflora, Bong. Leaves laciniate -cleft or entire: galea partly exserted. 



6. 0. miniata, DougL Leaves and bracts mostly entire: galea more exserted. 



7. 0. foliolosa, H. & A. Many stems from woody base leaves crowded. CaL Gooat 



8. 0. pallida, Benth, var. occidentals, Gr. Flowers whitish: low: alpine. 

 8. 0. Lexnmoni, Gr. Taller: spike dense, reddish. Sierra Co., CaL 



19. OBTHOCABPUS, Nuttall. 



8 1. Castilleoid.es, Gr. Lip of the corolla simply or somewhat triply saccate the lobee 

 (teeth) erect: anthers all 2-celled: bracts with colored tips. 



Perennial : very leafy: leaves mostly 3-5-parted : galea obtuse 1 



Annual (as are all the remaining species): galea nearly straight 2, 8, 4 



Galea densely bearded, incurved at apex: filaments hairy 5 



2. Corolla-lip simply saccate; teeth inconspicuous or wanting: galea ovate-triangular: 

 anthers 2-celled. 



Bracts colored, dilated: corolla rose-purple 6, 7 



Bracts not colored, leaf-like, 3-5-cleft, lobes acute 8, 9 



g 3. Triphysaria, Benth. Corolla-lip conspicuously 3-saccate, teeth minute or small; 

 tube slender: bracts all similar to the leaves. 



Slender, diffusely spreading: minute flowers in nearly all the axils 10 



Stams erect, often corymbosely or fastigiately branched. 



Stamens soon exserted: spikes of yellowish or white flowers dense 11 



Stamens included; anthers 1-celled: leaf divisions filiform 12, 13 



Stamens included; anthers 2-celled but lower cell often imperfect 14, 15 



Stamens included; anthers 2-celled: stems strict, often simple. 



Very leafy and hirsute above: spike very dense; bracts broad. 16 



Spikes leafy: corolla yellow; sacs 2 lines long: viscid 17 



corolla white sacs 1-2 lines deep , 18, 19 



1. O. pilosus, Watson. Sierra Nevada above 5000 ft. to Mts. of Oregon. 



2. O. attenuates, Gr. Slender: spike of pale flowers very slender. Coast. 

 S, O. densiflorus, Benth. Spikes dense: leaves entire or few-lobed. CaL 



& O. castilleioides, Benth. Spikes shorten leaves mostly laciniate. Coast. 



