poLEMONiUM HYDROPHYLLACEAE 463 



P. amoenuin Piper Erythea vii 174. " Perennial, erect, or nearly so, 

 15-24 inches high, glabrous below, sparsely viscid-puberulent above ; stems 

 terete, slightly wing-margined; cauline 4 or 5, 18 inches long; leaflets 15- 

 21, lanceolate, sessile, attenuately acute, 1-2 inches long: inflorescence 

 leafy-bracteate, open, the flowers in clusters of 2-4 on slender peduncles; 

 bracts 3 to 9-foliolate; calyx deeply 5-cleft, 5 lines long, viscid-pilose, the 

 narrow acute lobes about twice as long as the tube; corolla pale blue, 

 6-10 lines lines long, the broad obtuse lobes exceeding the tube; filaments 

 dilated at base, pilose-appendaged ; style 3-cleft at the apex included ; seeds 

 3-4 in each cell. Humtulips, Chehalis Co., Washington." 



P. luteum. Slightly pubescent: stems slender, ascending, 6-18 inches 

 long, leafy, cymosely 3-9-flowered : leaflets 11-21, oblong to almost lanceo- 

 late, acute, or the terminal ones rounded at the apex, 2-8 lines long, the 

 lower ones smallest : calyx open-campanulate, 4-6 lines long, cleft nearly 

 to the base, the ample lobes lanceolate, often more or less acuminate : 

 corolla yellow, 8-10 lines long, the ample pbovate lobes 3 or 4 times as 

 long as the tube : filaments slender, pubescent at base, about half as long 

 as the corolla lobes. In forests of the Cascade Mountains, Oregon. 



§ 3 Leaflets very small and crowded so as seemingly to be 

 verticillate. Inflorescence capitate-congested or spiciform. Co- 

 rolla strictly or even narrowly funnelform; its tube more or less 

 exceeding the oblong or cylindraceous calyx, prominently longer 

 than its lobes. Filaments naked or nearly so, not dilated at base, 

 usually inserted on the middle of the tube, or occasionally adnate 

 higher. 



P. confertum Gray Proc. Acad. Philad. 1863. Stems 10-12 inches 

 high from a tufted rootstock, glandular-pubescent and viscid, musky- 

 fragrant : petioles of the radical leaves conspicuously scarious-diiated and 

 sheathing at base: leaflets 1-3 lines long, mostly 2-3-divided and so ap- 

 pearing as if in fascicles or whorls ; the divisions from round-oval to 

 oblong-linear : flowers densely crowded, heavy-scented : corolla deep blue, 

 6-12 lines long, its rounded lobes 2-3 lines long: ovules about 3 in each 

 cell. Bleak points on the highest mountains, Idaho to the Rocky Moun- 

 tains and California. 



Order LXIV HYDROPHYLLACEAE Lindl. Nat. Syst. 271. 



Herbs, or rarely shrubs, with colorless insipid juice, alter- 

 nate or sometimes opposite leaves without stipules, and mostly 

 a scorpioid bractless inflorescence or the scorpioid cymes more 

 commonly reduced to geminate or solitary false spikes or ra- 

 cemes which in descriptions may be termed spikes or racemes. 

 Calyx 5-parted or nearly 5 sepalous inferior and free from the 

 ovary. Hypogynous disk at the base of the ovary often con- 

 spicuous. Corolla regularly 5-lobed, with the 5 stamens borne 

 on the base or lower part, and alternate with its lobes. Styles 

 2, distinct or partly united, or rarely completely united: stigma 

 terminal. Ovules amphitropous or anatropous, from 4 to very 

 many, pendulous or when numerous almost horizontal. Fruit 

 a 2-valved capsule, 1-celled with 2 parietal placentae, or incom- 

 pletely 2-celled by the approximation or meeting of the placentas, 

 or even completely 2-celled by their union in the axis. Seeds 



