Bickxell : Species of the Genus Hydastylus 385 



large, i. 25-1. 5 mm. in diameter, subglobose to broadly oblong, 

 semi-transparent brown, deeply close-pitted and excavated-um- 

 bilicate. 



Mexico: Chihuahua; Sept. 7, 1887, fruit mature and last 



flowers ; " High plains between Cusihuiriachic and Guerrero, C. 



G. Pringle ; wet places, Sierra Madre, Oct. 11, 1888, fruit mature 



and last flowers/'. C G. Pringle. 



Printed labels refer the older collections of this plant to H. 

 Schaffneri from which, however, it may be readily distinguished by 

 much broader leaves, elongated primary bracts and much smaller 



1 



flowers with very short anthers and recurved pedicels. 



Hydastylus subcernuus sp. nov. 



Caespitose in small tufts, 6-15 cm. high, the leaves mostly 

 erect, the stems erect or ascending, turning dark brown in drying ; 

 roots pale, very delicate and fibrillate. Leaves about half the 

 height of the longer stems, mostly 1.5 mm. wide (1-2 mm.), thin 

 and delicately open-nerved, tapering to an obtuse point, the edges 

 smooth to distantly denticulate: stem 2-15 cm. high, .05-1.5 

 mm. wide, delicately wing-margined, the thin edges minutely 

 . denticulate or usually so : spathes small, the narrow bracts sub- 

 equal or usually the outer one a little surpassing the inner, some- 

 times as much as 6 mm. longer, 13-22 mm. long, united-clasping 

 for 5-6 mm., attenuate to an obtuse point ; inner bract narrowly 

 obtuse-pointed ; interior scales nearly equaling the inner bract : 

 flowers 3-5, small, perianth about 5 mm. long, yellow, delicately 

 dark lineate : stamens about 3-50 mm. long ; pedicels capillary, 

 1 5-20 mm. long, finally exserted and recurved spreading : capsules 

 less membranous than in H. cernuus but similarly moulded over 

 the contained seeds, mostly obovoid-pyriform and 5-6 mm. high : 

 seeds few in a row, larger and rather darker and more coarsely 

 pitted than in H. cernuus \ 1.5— 1.75 mm. in diameter, widely exca- 

 vated on one side or more or less acetabuliform. 



Lower California : Sierra de la Laguna, January 22, T. S. 

 Brandegee, type in Herb. Cal. Acad. Sci. 



Nearly related to H. cernuus, but with narrower leaves, much 

 shorter outer bract, larger flowers with much larger anthers, pedi- 

 cels less exserted and recurved, capsules rather larger, seeds larger 

 and more coarsely pitted and acetabuliform. 



Hydastylus serrulatus sp. nov. 



Growing in nearly simple tufts, 14-32 cm. tall, from very deli- 



