322 BOTANICAL GAZETTE [May 
rous, expanded at base: style barely exceeding the throat, with short 
appendages: disk flowers many, all tubular, equaling the pappus, 
perfect, terminated by 5 acute teeth, 6™™ in length, expanded at the 
base, yellow: anthers included, 2™™ long, bases obscurely auricled, 
apex triangular, acute; filaménts glabrous, inserted upon the tube 
one-third from the base: style much exceeding the tube, its arms 
flattened, short and truncate: achenes compressed, silky pubescent: 
pappus bristle-like, chiefly of two series, rusty or yellowish white, 
the longer series 5™™ in length, finely scabrous, the basal one very 
short, lighter colored, smooth. . , 
Type specimen no. 4556, collected at Point Reyes, Marin County, California, 
July 1903. | : 
It forms dense prostrate mats on the windward side of the drifting sand dunes. 
Castilleia Wightii, n. sp.—A tufted perennial herb, 3°" to 1™ tall: 
stems several from the crown of the root, much branched from the base 
to the middle, glandular pubescent with dirty yellowish hairs: leaves 
alternate, sessile, quite membranous, pulverulent on both surfaces, 
or sparsely hairy along the 3 nerves, broadly linear to oblong, the 
larger ones 6°™ long and 15™™ wide, mostly with one pair of linear 
lateral segments from the middle of the leaf, the terminal lobe much 
longer and wider: inflorescence spicate, 10 to 20°™ long, terminating 
the erect corymbosely disposed branches; subtending bracts barely 
equaling the flower, densely covered with glistening subglandular 
hairs, 3-nerved and 3-cleft, the upper ones with colored tips: calyx 
pubescent, lateraily compressed and equally cleft nearly to the middle, 
the halves 2-toothed, subequaling the corolla: tube of corolla proper 
1o™™ long, glabrous, saccate, its nerves prominent; galea or upper 
lip longer than the tube, quite broad and membranous at base, 
straight, its blunt apex rather thickened and retrorsely pubescent 
on the outer surface; lower lip 3-toothed, teeth 1™™ long, obtuse, 
all alike: stamens equally inserted upon the middle of the corolla 
tube, the lateral pair a trifle shorter, the upper pair nearly equaling 
the galea and enclosed by it; , filaments glabrous, flattened, with 
hyaline margins; anther cells broadest at base, subequally attached: 
style little protruding, flattened, glabrous, persistent, often recurved 
near the apex, beating a capitate or obscurely flattened stigma; 
ovary smooth, somewhat compressed, acute toward the apex: cap- 
