Boschniakia. OROBANCHACEyE. 585 



« *■ Flowers mainli/ sessile, croivded in a simple or branching spike : lobes of the 

 corolla short and less spreading: calyx deejdy 5-cleft into linear-lanceolate divisions, 

 2-bracteolate. 



5. A. Ludovicianum, Gray. More pubescent, a ^^nn to a foot liigli : calyx 

 about half the length of the dull purple or sometimes yellowish corolla : anthers 

 (before opening) glabrous or slightly woolly. — Orobanche Ludoviciana, Nutt. Gen. 

 ii. 58. PhelipoEa Ludoviciana, Walp. ; licuter, 1. c. 



Near Fort Mohavo, Cooper. Tlmnco tliroiigli New Mexico to Texas, Illinois, and Minnesota. 

 "Rootstock bitter, but eaten by the Mohavcs." Corolla barely tlirco fourths of an inch long: 

 upper lip occasionally entire : calyx often rather irregular. 



A. MULTIFLOUUM, Gray {Orohanclw viulliflora, Nutt. PI. Gamb. 179, & P/wlipoca criani/iera, 

 Engelm.), of Arizona and New Mexico, which resembles the preceding species, has larger flowers, 

 the lower ones more or less pedicelled, longer calyx-lobes, and very woolly anthers. It may also 

 reach California. 



* * * Floivers mainly sessile, in a. pani/^le or thyrsoid cluster, small, at most half an 

 inch long : calyx 2-bracteolate ; its lobes rather short : corolla ivith short a)id hardly 

 spreading lobes : anthers glabrous or nearly so : stems from a thick and firm tuber- 

 ous base. 



6. A. tuberosum, Gray. Minutely puberulent, low and stout, the thickened 

 base witli firm imbricated scales : flowers in a compact cluster : calyx unequally 

 cleft, a little shorter than the yellowish corolla. — Phelipcea tnberosa. Gray, Proc. 

 Am. Acad. vii. 371. 



Sandy soil on dry ridges, Gavilan Mountains east of Monterey, Brewer. Specimens mainly in 

 fruit. 



A. PlNKTonuM, Qrny {Phrlijma pivetnrnm, Gray, 1. c, and Orohanrlie pivrtornm, Goyerin Hook. 

 Kew Jour. Bot. iii. 297), of the Columbia IJivcr region, another species of this section, lias more 

 tapering stems and a looser panicle, often a foot high, and c(\nn\ calyx-lobes rather shorter than 

 its tube. 



2. BOSCHNIAKIA, C. A. Meyer. 



Calyx short and cupahaped, oblique, or the upper side truncate, the lovrer side 

 with about 3 distant teeth : no bractlots at its base. Corolla ventricose ; the upper 

 lip erect or somewhat arched and entire ; the lower 3-partcd, sometimes very short. 

 Stamens somewhat protruded : anthers blunt at base. Seeds Avith a thin and retic- 

 ulated coat. — Short and stout simple stems from a tuberous base, thickly beset 

 with scales, glabrous throughout ; the flowers in a dense scaly spike, yellowish or 

 brownish. — Bongard, Veg. Sitcha, 158. 



B. GLABRA, C. A. Meyer, the original species (which is figured in Hooker's Flora Bor.-Am.), 

 inhabits Siberia and the high northern parts of this continent. It is remarkable for the ex- 

 tremely short lower lip to the corolla. 



B. HooKEiu, Walp. (figured by Hooker as Orobanche tiihrrosa), known only by a .siwcimcn 

 collected by Menzios on the N. W. Coast, must bo near the following, but has short and blunt 

 calyx-teeth and narrow bracts to tho spike. 



1. B. Strobilacea, Gray. A span high, thick and stout, with broad and 

 rounded dark-brown scales overlying one another, so as to resendile a spruce-cone, 

 floriferous from near tho base : calyx truncate-entire on the po.'^torior side, on the 

 anterior with 3 linear-subulate teeth longer than tho tube : lower li]> of the corolla 

 as long as the ujiper, of ;? obhuig spreading lobes : filaments strongly boarded at 

 base: placenta; 4, equidistant. — Pacif. R. Kep. iv. 118. 



On dry steep hills of the South Yuba, Biqrlow. Sta. Lucia Mountains, parasitic on roots of 

 Manzanita, Brewer. "Scales brownish-red with light margins : corolla striped with white and 

 brownish-red." 



