HarDROPHYLLAGEAE (WATERLEAF FAMILY') 405 



naTEOwIy oampanulate, about as long as the corolla-tube: corolla bluej tubular- 

 campanulpjte, 12^16 mm. long, the broadly elliptic lobes ^.little longer. .tljan 

 the calyx: filaments very slender, the base slightly dilated and sparsely pilose: 

 seeds 2-3 ih each cell.-^— Yellowstone Palrk and probafcly'Idaho and Monisln'a. 



6. Polemonium pteros^rmtim Nels. & Ckll. Proc. Biol. Soc: Wash. 16: 45. 

 1903. Low, 1-2 dm. high, glabrate below, gkndular-puberulent above: 

 stems several, spreading or deeimibent at base, very leafy',' 'feSpecially aboVe. 

 leaves 4-6 cm. long; the segments oblqngj, acute, 8-12 mm. long, the lower 

 distinct and subpetiolate, the terminal crowded and slightly confluent: 

 flower? in cf^ngested corymbs: calyxJobes about equaling the campanulate 

 tube: c6r6lla purple,, campan^li?.te;l0-12 mm.lQhg,quite.as broad; the tube 

 short) the lobes broadly ovate, moderately obtuse: filaments shorter than the 

 corolla, somewhat incurved, glabrous, but involved in' dense fine pubescence 

 at the insei;tipn: style filiform; the stigmas narrowly linear, exserted: ovules 

 fewj apparently oiily 2 or 3 maturing: the seeds narrowly wing-margined, and 

 subconcave ventrallys — Northern' New Meiico, probably iextending' into 

 Colorado. 



7. Poletnonium vigcosum Nijtt, PI. Qamb, 154. 1848. Somewhat viscid 

 throughout; rhizome somewhat fleshy';' stems erect, 5-12 cm. hi^: leaflets 

 30-40, , small, oblong to suborbicular, crowded or subhpbricate;: .flowi^rs^in 

 capitate clusters: calyx campanulate, very glapdular.and often pilose: corpUa 

 blue, twice as long astlie calyx, broadly funnelform, 14-18 mm. long, the lobes 

 rounded-obtuse: stamens and style abbjit as long as the corolla. (P. Grayanum 

 Rydb. 1. c. 31 : 635. 1904.) — Rare; on the highest of the Rocky Mountaiii pieaks. 



8. Polemonixmi confertum Gray, Proc. Am. Acad. Sci. Phila. 73. 1863. 

 Perennial, 1-2 dm. high, glalndular-viscid and musk-scented; pubescent above: 

 leaflets very numerous, small; 3-8 mm. Ibng, mostly as if whorledor fascicled, 

 being 2-5-divided and sessile, segmenits either brtiadly oval or linear-oblong: 

 flowers capi'tate-crowdedj ' at length racemose-Spicate, somewhat noddifag, 

 honey-scented:- lobes of the calyi narrow, half as long" as' the cylindrical or 

 oblong tube: corolla 2-3 cm. long, blue, the narrow funnelform tube longer 

 than.the calyx and 2-3 times lonSgerthan the rounded lobes: filaments barely 

 hairy and scarcely dilated at base. — In the higher mountains; from Colorado 

 to Montana. 



9. Polemonium mellitum (Gray) A. Nels. Bull. Torr. Bot. Club 26: 354. 

 1899. Viscid-pilose/ tufted, the stems'erect or spreadfflg: radical leaves long; 

 the .leaflets in verticils of 3^ or merely paired, oval to broadly linear, thin: 

 inflorescence lodsely spicat6 to racemose, bracteose: the lanceolate calj^x-lobes 

 scarcely shorter than the tube: corolla white or oohroleucous, tubular, jnore 

 than twice as long as the calyx' (20 mm. or riiore), the lobes one third as long 

 as the tube. Herbage heavy musk-scented, biit the flowets "honey-sweet." — 

 In the mountains of diir range to Nevada. ' 



9a. Polemonium mellittun speciosiun (Rydb.) A, Nels. Similar in all re- 

 spects except that the leaves are often merely paired apd the flpwers tinged' with 

 blue. (P. spedosum Rydb. 1. c. 28: 29.) — Mount Garfield in Colorado. 



.10. Polemonium Brandegeei (Gray) Greene, Pitt. 1:,126. 1887. nVery 

 ■viscid ■with ^andular pubescence, pleasantly odoriferous; caespitose; stems' 

 l-iS dm-.high, simple: leaves all pinnate, elongated-linear in outline, the rad- 

 ical, crowded, the cauliiie.sca,ttered;' leaflets; very small land numerous, oval 

 to qblong-linear, some ample, others 2-parted-and so appearing verticillate: 

 flowers several in a short and racemiform leafy thyrsus: corolla golden-yellow, 

 trumpetrshaped, with very narrow tube,, 20-26 mm. long. iGUia Brandegeei. 

 — C,olprado,, ... [ . ■ : : ■ 1 -,, !, , 



■ ■ ■[ ' 



99. HYDROPHYLLACEAE L. Waterli^af Family 



Herbs or shrubs with opposite or alternate leaves. Flowers regulaH''5- 

 merous in racemes or spikes (often scorpioid), or capitate, or solitary. Sta- 

 mens near the base of the cprplla, alternate with, ;tg lobes. Styles 2, distii^ct 



