JOHNSON: A REVISION OF THE SECTION BORAPHILA 25 



eciliate by the falling of the hairs. The gland becomes elevated by the 

 growth of the carpels and takes the form of a wrinkled girdle. The young 

 carpels taper gradually and somewhat pyramidally upwards into the rather 

 slender elongated beaks (Plate IX), 



Specimens examined : 



Elihu Hall 151, "Oregon" . . . "ann. 1871" (Type MBG 84380). Plantae ore- 

 gonensis. Legend : "Saxifraga virghiiensis Michx., a very tall form." MBG 84380. 

 (On a sheet from the Redfield herbarium, bearing also two specimens of Saxifraga 

 californica. The type specimen of this species is designated "a" — the leaf-hand speci- 

 men). 



Saxifraga idahoensis Piper, Bull. Torr, Bot. Club 27:394. 1900, 

 Micranthes saximontana (E. Nelson) Small, N. Am. Fl. 22:2:145. 1905. 



The outstanding characteristics of this species are the very shallow 

 receptacle and consequent slightly inferior ovary, and its habit. In foliar 

 characters it is strongly suggestive of Saxifraga caroliniana. It is a grace- 

 ful plant with an open and diffuse inflorescence, lacking the rigid character- 

 istics of the plants referred to as 5". saximontana, whose range is contiguous. 

 In some respects it resembles S. Allenii. 



Its limited range may probably be extended by further exploration, 

 since topographic and climatic conditions similar to those of its locality 

 extend over a wide region (Plate VIII). 



Specimens examined: 



Idaho: moist hillsides, island in Clearwater River, above Lewiston, May 2, 1892, 

 Sandherg, MacDougal, and Heller, No, 93; Palouse country and about Lake Coeur 

 d'Alene, May, 1892, /. H. Sandberg; moist hillsides, Lewiston, May, 1893, /. H. Sand- 

 berg. 



Saxifraga klickitatensis sp. nov. 



Receptaculum ovarii parte inferiore adnatum flabelliforme, carpidia conica 

 superne conspicue contracta, base glandula dilatata cincta stylis attenuatis, 

 folliculi purpurei stylis conspicue attenuatis divergentibus, stigmatibus parvis ; 

 filamenta subulata, plana, superne contracta; sepala reflexa; petala elliptica 

 1-nervia; pilorum cellulae 2-3 cylindricae in seriem unam dispositae; folia 

 basalia ovata serrato- vel crenato-dentata infra lanuginoso-pubescentia. 



Carpels bottle-shaped, surrounded at the base or slightly above by a 

 dilated gland; follicles purple, inflated at maturity, contracted above into 

 slender elongated, strongly spreading to somewhat recurving beaks. Fila- 

 ments subulate, flat, tapering above to a sharp point. Sepals 1-1.5 mm., 

 green, becoming reflexed; lateral nerves usually 2, wanting in smaller seg- 

 ments, reaching beyond the middle or coalescing with mid-nerve below apex. 

 Petals white, 1.2-2.7 mm. elliptic to elliptic-oblong, 1-nerved. Hairs of 



