SOME CASTILLEIAS OF THE PARVIFLORA GROUP. 43 



In De Caudolle's Prodromus, Bentham described C. Douglasii 

 from " Nova California,'' with the stems sparingly but stiffly pilose, 

 with the lower leaves linear, entire, the upper broader, incised, and 

 the calyx-lobes obovate and very obtuse. One of the original 

 specimens from Douglas, deposited in the Gray Herbarium, agrees 

 well with this description except that the calyx-segments are ovate- 

 lanceolate and bluntish rather than obovate and very obtuse as de- 

 scribed by Bentham. 



In 1853, in a note upon Castilleia hispida, Benth., Sir William 

 Hooker calls attention to C. desertorum, Geyer, * No. 511, as having 

 the bracts yellow and scarlet variegated. Except in color, however, 

 he did " not see. how these specimens of Mr. Geyer's C. desertorum 

 (n. 511) differ from what I consider to be a mere form of C. hispida 

 (n. 377)." The specimen of Geyer's No. 511 which I have ex- 

 amined^ seems not to differ in habit and pubescence from C. angusti- 

 folia, Don, or C. Douglasii, Benth. 



Although the three species, Castilleia angustifolia, C. Bradburii, 

 and C. hispida, preseut fairly marked characters in their extreme 

 forms, it has been impossible, in the light of many specimens, to find 

 characters by which they may be constantly recognized. Many puz- 

 zling forms have been collected which might almost equally well be 

 referred to any of them, and, on this account, it seems advisable to 

 treat them as varieties of one species. This species, C. angustifolia, 

 should, it seems, also include C. Douglasii, Benth., and C. desertorum, 

 Geyer. 



The original species, C. parvifiora, Bong., with which all these 

 plants have been associated, appears to be very distinct from them 

 and to typify another group of species characterized in part by their 

 glabrate stems and thinner leaves. Still a third group of these 

 short-lipped species is characterized by its viscid pubescence^ and is 

 represented by a couple of recently discovered Oregon species and 

 a somewhat obscure species from Mt. Dana. 



The following synopsis and notes will perhaps make clear the 

 conclusion, to which these studies have led. In discussing this group, 

 few forms besides those of Northwestern America have been taken 



*Geyer in Hook. Jonrn. Bot. & Kevr Misc., v. 258. 



