92 OROBANCHE^. [Orobanche. 



acutis (siccitate) intense fiiscis opacis, calyce cyathiformi obliquo tridentato, corollze tubo in- 



flatOjlabio superioreelongatointegrojinferioreabbreviato obscure trilobo. (Tab.CLXVII.) 

 —Boschnajakia glabra. Bunge, in Herb. «05^r.— Stellara lathr^oldes/ F/5cA. in Herb, 

 nostr, 



Hab. N.W, Coast of America. Mr, ^lenzies {Herb, nostr,) Great Slave Lake to Fort Franklin on 

 the Mackenzie River. Br. Michardson.-^This, and the following, with O. Americana, L. (which I possess 

 from various parts of the United States, and from Mexico,) doubtless constitute a good genus, Boschnajakia 

 of Bung:e: but I regret I do not know where that author has described it. His specimens from Eastern 

 Siberia are precisely the same as those gathered by Mr. Menzies and Dr. Richardson, and are remarkable 

 for the very imperfect lower lip of the corolla, by which the species is at once distinguished from O. Ameri- 

 cana, as well as from the following. 



Tab. CLXVII— F^. 1. Fruit; fig. 2, Side view of a Flower; fig, 3, Calyx; figs. 4 and 5, Fruit:— 

 magnified, 



2, O. tuberosa; glaberrima, caule squamato basi tuberoso, squamis ovatis acuminatis 

 (siccitate) intense fuscis opacis, tubere reticulato areolis tuberculiformibus pentagonis, spica 

 densa, floribus unibracteatis, calyce cyathiformi obliquo 3-dentato, corolla tubuTosa bilabi- 

 ata, labiis erectis, superiore ovato integro, inferiore 3-Iobo breviore, lobis ovali-obloncris 

 obtusis erectis. (Tab. CLXVIII.) *^ 



Parasitica. CauUs erectus, simplex, digitalis et ultra, squamosa, basi in bulbura reticulatum incra«^satum 



squamis laxiusculis fusco-nigrescentibus. Flores in spicam elongatam congesti erecti, paululum curvati 



Stamina inelusa. Filamenta basi barbata. Antherw ovat^, erects, apiculat*, facie anteriori dehiscent 



nmislongitudinahbussupernejunctis. Gem^n ovali-subrotundum: ^^^^fe supra curvatus. Stiqma ^nC 

 quadrilobura. 



Hab N.W. Coast of America. A. Menzies, Esq.-1h\, is remarkable for its decidedly tuberous roots 

 and bjr that character, as well by the very dark brown opaque (not pale brown and shining) scales of the' 

 stem, It may readily be known from the O. Americana, L., which has not, I believe, yet been detected 

 in British North America. 



w 



Tab^ CLXVIII -Ftgr. 1, Side view of a flowerj^j,. 2, Front view of Ao.;Jig. 3, Vhi\hfig. 4, Stamen- 

 fig. 5, Back view of an anther;/^. 6, Front view of do.:— magnified. 



* * Calyx plerumque 5-Jidus. Antherm basi acuminatcB, lateraliter dehiscentes. Placentm 



4). — Orobanche vera. 



3. O. Ludoviciana; pubescentl-glandulosa, caule brevi simplici v. subranioso spica 

 elongata densiflora, calyce infequali profunde 5-fido bibracteato laciniis linearibus, corollse 

 intus extusque pubescentis tubo elongate curvato, labiis subaequalibus, sup. bifido inferiore 

 trifido, lobis acutiusculis, staminibus inclusis Nutt. Gen. v. 2. p. 58. 



Hab Plains of the Saskatchawan (rare.) Drummond. New Caledonia. Douglas.-Mr. Drummond 

 met with the same plant in Texas, (1st Coll. n. 69). Mr. Douglas' specimens are taller, more generally 

 branched, and more hoary with down: the calyx is oflen 6-clcft, the upper lip of the corolla sometimes 

 nearly entire ; but I do not see that they are otherwise different from those of the eastern side of thp 

 Rocky Mountains. 



Caulis fasciculatim ramosus, floribus solitariis {tion spicaiis) ebracteatis.~F as- 



* * * 



CICULAT^. 



4. 0. comosa; pubescens, caule brevi densissime fasciculatim ramoso, ramis squamosi.s, 



