GILIA FAMILY 161 



(also known as Tumboa Welw., 1861). See Nomina Conserranda List, Kew Bull. 1921:326. 

 Hugelia Benth. is, therefore, the only published name at present available for designating this 

 Polemoniaceous genus and its inclusion in the next Nomina Conservanda supplement to the Inter- 

 national Eules of Botanical Nomenclature is expected. 



Perennial (woody-based) ; corolla 2 to 3 times longer than calyx; South Coast Eanges and s. Sierra 



Nevada to S. Cal 1. S. densifolia. 



Annuals. 



Anthers % to 1 line long, strongly sagittate, well-exserted from corolla-throat ; corolla bright 

 blue or yellow. 

 Stamens inserted in sinuses of corolla ; corolla-tube 2 to 3 times as long as calyx ; San 



Joaquin VaUey and bounding ranges and vp. Mohave Desert 2. B. pluriflora. 



Stamens inserted at base of corolla-throat; corolla- tube about as long to 2 times as long 



as calyx. 



Corolla bilabiate, the tube 1% to 2 times as long as calyx; stamens unequal; heads 



terminal on the branchlets of the diffusely or dichotomously branched 



plants; leaves pinnately 3 to 7-cleft; outer bracts mostly pinnately 3 to 



5-cleft 3. H. eremica. 



Corolla regxiiar, the tube about as long as the calyx ; stamens subequal ; heads mostly 

 racemosely disposed, sometimes corymbose, 2 to 6 lines broad ; leaves fili- 

 form, entire or with only 1 (rarely 2) pair of lobes at the base ; outer bracts 

 palmately 3 to 5-cleft. 



Corolla yellow ; Monterey Co. to Orange Co., near coast line 4. H. hitea. 



CoroUa dark-blue, the throat yellow; Monterey Co. to cismontane S. Cal. and 



Mohave Desert 5. H. virgaia. 



Anthers % to ^2 line long, oval or not conspicuously sagittate, mostly included or only shortly 

 exserted from corolla-throat ; corolla light-blue to white, its tube not exceeding the 

 calyx, its lobes Yi to % as long as corolla-tube and throat. 

 Corolla 3*4 to 7 lines long, the throat yellowish. 



Plants erect, the stems white-tomentulose or glabrate ; bracts mostly straight; corolla 

 1*4 to 1% times as long as calyx; widely distributed, both cismontane 



and transmontane 6. S. filifolia. 



Plants diffusely or divaricately branched, the stems wiry, red-brown, glabrous ; bracts 

 or their lobes curved; corolla little or not at all exceeding calyx; Mohave 



and Colorado deserts 7. H. diffusa. 



Corolla 2 to 3 lines long, the throat not yellowish. 



Corolla pure white, bilabiate or regular; bracts dull green, tomentose below; leaves 



entire; San Joaquin Valley S.H. hooveri. 



Corolla white or pale blue, not bilabiate; bracts bright intense green (contrasting 

 strongly with the white matted wool on lower part) ; leaves pinnately 3 to 

 5-divided; Lake Co. and Santa Cruz Mts 9. H. abramsii. 



1. H. densifolia Benth. Stems many, tufted on a much-branelied woody root- 

 crown, erect, simple or branched above, 5 to 14 inches (or 2 feet) high; herbage 

 lanate-tomeutose when young, glabrate in age; leaves i/i to 2i/4 inches long, the 

 rachis or body narrowly linear, bearing 1 to 3 (or 5) pairs of lobes, the lobes lan- 

 ceolate or short-subulate, spinulose-tipped, sometimes the rachis with only a single 

 pair or two pairs of lobes towards the base (the upper elongated linear or linear- 

 lanceolate part of the leaf thus entire), rarely the leaf wholly entire; flowers in 

 dense terminal clusters, the clusters variable in size but often markedly capitate 

 (1/4 or 1/4 to 11/2 inches broad), the foliaceous bracts and the calyces implexed- 

 woolly; corolla deep blue, 5 to 10 lines long, its lobes oblong, 2 to 21/0 lines long. 



Dry chaparral slopes or mesas or sandy flats, 1000 to 7000 (or 8500) feet : south 

 Coast Ranges from Santa Clara Co. to San Luis Obispo Co. ; cismontane Southern 

 California from Santa Barbara Co. and northern Ventura Co. to San Diego Co. ; 

 Tehachapi Mts. ; southern Sierra Nevada in Kern and Inyo Cos. South to Lower 

 California. June-Sept. 



Note on variation. — Hugelia densifolia represents an unstable aggregate. There is much 

 variation in habit, in persistence of pubescence, in leaf lobation and in size of the flower heads, 

 the range in size of heads being to a considerable degree associated with the degree of branching. 

 The leaves vary in length and in width of rachis and as to the number, position and discreteness 

 of the lobes and size of the lobes. The coast line of San Luis Obispo and Santa Barbara counties 

 is the habitat of a form of the species with non-rigid leaves: the rachises of the leaves are very 

 narrow (% to % line wide), especially on the basal leaves, and the 1, 2 or 3 pairs of lobes are 

 mostly set below the middle or sub-basal. Sometimes the lobes are reduced to one tooth-like sub- 



