152 



osis; corolla 7-8 mm. longa tubo pallido minus bis quam limbo 

 langiore coerulea vix aperta lobis brevibus rotundisque; sta- 

 minibus paullo sub faucibus insertis vix inclusis filamentis 

 antheras fere aequantibus et vix angustioribus; style 2-3 mm. 

 exserta. — Type collected by Mrs. R. D. Cooper in damp ground 

 along Silver Creek, Harney County, 6 mi. west of Riley, June 

 1922. 



This species is readily distinguished by the very dense pan- 

 icles of small flowers with strongly exserted styles. 



Cryptantha fragilis, sp. now, annua gracilis 3-4 dm. alta 

 sparse ramosa per totam fere longitudinem caulis; ramis longis 

 patentibus pallidis fragilibus sparse hirsutis setis tenuis patenti- 

 busque; foliis basin versus congestis linearibus 2-4 cm. longis 

 tenuis hirsutis setis basi saepe pustulatis; spicis geminatis rare 

 ternatis vel solitariis longe pedunculatis primo densis tardius 

 elongatis floribus sessilibus et conspicue 2-seriatis; calyce fruc- 

 tuque prompte maturitate decadentibus; calycibus maturis 

 3-3.5 mm. longis lobis lanceolatis aliquid obtusis adpresso- 

 hispidis dorso mediali apicibus conniventibus; tubo corollae 

 quam calyce longiore limbo 3.5 mm. lato cristis glandulisque 

 faucis flavulis; nuculis 1-2 late ovatis 2 mm. longis ventrale 

 conspicue carinatis, sulco furcato basin versus sine areola plana, 

 dorso convexulo marginibus rotundis, superficie minutissime 

 muricata et sparse spinulosa; gynobasi circiter dimidio quam 

 nuculo breviore; stylo paullo quam nuculis breviore. — Type 

 collected by Mrs. Lilla Leach along the Rogue River 5 mi. be- 

 low Almeda, Josephine County, June 11, 1928. Peck 3995, from 

 2 mi. east of the Douglas-Curry County line on the trail from 

 West Fork to Marial is the same. 



The species is related to C. Hendersoni (Nels.) Piper, but is 

 seeming distinct. 



Pentstemon hesperius, sp. nov., caule e rhizomate plerum- 

 que simplice, basi saepe persistente 6-12 dm. alta simplice vel 

 basin versus divisa glabra ad basin vel sub petiolis in lineis 

 puberula supra pubescentiore; jugis foliorum remotis internodis 

 interdum 2 dm. longis; foliis omnibus integerrimis plerumque 

 obtusis, inferioribus lanceolatis vel oblanceolatis gracili-peti- 

 olatis 4-7 cm. longis, superioribus lanceolatis supremis solum 

 redactissimis; inflorescentia densa angustaque omnino conferta 

 vel interrupta, fasciculis inferioribus interdum remotis, puberula 

 aut fere glabra haud glandulare, bracteis superioribus angustis- 



