630 



OROBANCHE^E. I. OROBANCHE. 



Centaureae-scabiosae, Vauch. inon. p. 61. with a figure. O. 

 major, Sibth. p. 191. Flowers of a pale russet-colour, with 

 darker veins. 



Taller Broom-Rape. Fl. July, Aug. Britain. PI. 1 to Ij 

 foot. 



17 O. NUDIFLORA (Wallr. sched. crit. 1. p. 310.) pubescent; 

 scales narrow, few ; spike few-flowered, loose ; floral scales ex- 

 ceeding the flowers, which are tubular ; lobes of corolla quite 

 entire ; middle segment of the lower lip obovate ; stamens 

 downy at the base; style glabrous ; stigma 2-lobed.? l/.H. 

 Native of Germany and Denmark. O. minor, Vahl, fl. dan. t. 

 1213. 



Naked-flowered Broom-Rape. PI. 5 to 1 foot. 



18 O. A'LBA (Steph. in Willd. spec. 3. p. 350. Rchb. icon, 

 t. 679. and t. 680.) scape simple, beset with glandular hairs at 

 top ; scales Temote, adpressed, lanceolate ; spike elongated, 

 loose ; floral scales ovate, acute, clothed with glandular hairs, a 

 Jittle longer than the calyx ; calyx bifid, with entire segments ; 

 corolla cylindrical : upper lip obcordate, denticulated, as well as 

 the segments of the lower lip ; base of filaments and top of style 

 beset with glandular hairs; stigma large, 2-lobed. %. H. 

 Native of Siberia, towards the Caspian Sea ; and of Caucasus, 

 on the Talusch mountains, at the altitude of from 500 to 800 

 hexapods. The corollas are generally white ; but there are also 

 varieties with dirty purplish, or brownish corollas. 



W/iite-flowered Broom-Rape. PI. J foot. 



2. Superior lip of corolla bifid. 



19 O. sFECibsA (D. C. fl. fr. 3. p. 490.) scape beset with glan- 

 dular hairs ; spike dense ; corolla tubular ; upper lip 2-lobed : 

 lobes all rounded and crenulated ; middle segment of the lower 

 lip larger than the lateral ones; calycine segments undivided; 

 stamens and style glabrous. If. . H. Native of France, at 

 Telon. 



Showy Broom-Rape. PI. 1 foot. 



20 O, RU'BRA (Smith, engl. bot. t. 1786. fl. 3. p. 148.) 

 clothed with glandular, viscid pubescence ; scape simple, densely 

 scaly ; calycine segments 2, lanceolate, undivided ; floral scales 

 shorter than the flowers ; corolla tubular, somewhat tumid ; 

 upper lip bifid ; lobes all crenated and fringed with short, glan- 

 dular hairs on the margin ; base of stamens, and top of style 

 fringed and glandular. If. . H. 'Native of the North of Ire- 

 land and Scotland, on basaltic rocks ; plentiful at Cave-hill, near 

 Belfast ; also on the Giant's Causeway ; at Staffa, and near 

 Kirkaldy. Hook. fl. lond. t. 105. Root creeping along the 

 rock. The whole plant is of a rusty-purplish colour. Spike 

 not dense. Flowers with a powerful scent of honeysuckle. 



/Jed-flowered Broom-Rape. PI. 1 foot. 



21 O. ACAU'LIS (Roxb. fl. ind. 3. p. 29.) scapeless ; flowers 

 crowded into irregular heads, which are sessile on the roots ; 

 calyx 1 -leaved, opening on the side, or divided into 2 unequal 

 portions ; segments of corolla jagged ; anthers simple, each inner 

 pair augmented with a large, recurved, oval gland ; stigma pel- 

 tate. If.. G. Native of the East Indies, parasitical on the 

 roots of the China sugar-cane in the botanic garden at Calcutta. 

 Bracteas triangular, embracing the base of 1 or more pedicels. 

 Corolla purple outside, yellow inside. 



Stemless Broom-Rape. PI. dwarf. 



22 O. CONDENSA'TA (Mor. clench, sard. fasc. 2d. ex Linnsea, 

 5. p. 94.) scapes villous ; scales lanceolate, acuminated ; calyx 

 bipartite, with semibifid segments ; upper lip of corolla some- 

 what 2-lobed ; spike elongated, cylindrical, compact ; style gla- 

 brous ; stamens rather pilose at the base. If. H. Native of 

 Sardinia, on the roots of Genista Corsica, Said to be nearly 

 allied to 0. speciosa, D. C. 



Condensed-spiked Broom-Rape. PL J to 1 foot. ? 



23 O. SORDIDA (C. A.Meyer, in Led. fl. ross. alt. ill. t. 386. fl. 

 alt. 2. p. 455.) pubescent ; floral scales oblong-lanceolate, about 

 half as long as the flowers ; calycine segments free, bifid : lobes 

 lanceolate, nearly equal ; corolla cylindrical, incurved ; lips of 

 equal length : lobes of the lower one oblong, acutish, quite en- 

 tire, flat, middle lobe the longest ; filaments and style rather 

 hairy; stigma 2-lobed. If.. H. Native of Altaia, in the Soon- 

 garian desert, on the Arkaul mountains, not far from lake Noor- 

 saisan, in rocky places. Hairs white. Corolla dirty yellow, or 

 pale brown, glandular outside ; lobes of the upper lip truncate 

 or rounded. Style glandular, and sometimes the stamens. 



.Dirty-flowered Broom- Rape. Fl. May. PL 1 foot. 



24 O. FCE'TIDA (Poir. itin. 2. p. 195. Desf. fl. all. 2. p. 59. 

 t. 144. Tenor, fl. nap. 2. p. 63. Viv. fl. libyc. p. 34.) scape 

 simple, hairy, fistular ; scales lanceolate : floral scales linear- 

 lanceolate, longer than the corollas ; calyx 2-leaved : segments 

 bifid, lanceolate, subulate, unequal ; corolla cylindrical ; upper 

 lip 2-lobed : lower one 3-lobed : lobes roundish, denticulated ; 

 stigma thick, 2-lobed. 3. H. Native of Barbary, everywhere 

 in fields and cultivated ground ; and of Tripoli, on hills. Link, 

 et Hoffm. fl. port. 2. p. 316. t. 02. Bracteas hairy. Corolla 

 dark purple, size of those of O. major. Stamens inclosed. 



Stinking Broom-Rape. PL 1 to 2 feet. ? 



25 O. AMCE'NA (C. A. Meyer, in Led. fl. ross. alt. ill. t. 385. 

 fl. alt. 2. p. 457.) smoothish ; floral scales ovate-lanceolate, 3 

 times shorter than the flowers ; calycine segments free, bifid, 

 with linear-lanceolate, nearly equal lobes ; corolla cylindrical, 

 incurved ; lips of equal length : lobes of the lower lip bluntish, 

 denticulated : middle lobe rather the longest ; filaments hairy at 

 the base, but rather glandular at top, as well as the style ; stigma 

 2-lobed. If.. H. Native along with the preceding, on the 

 Arkaul mountains. The whole plant is clothed with glandular 

 scurf, nearly glabrous, and of a yellowish-brown colour. Co- 

 rollas of a deep violet-blue colour, with a few glands outside. 

 Lobes of the upper lip nearly orbicular, denticulated. Nearly 

 allied to O. sordida and 0. arenaria, Bieb. 



Pleasant Broom-Rape. PL \ foot. 



26 O. RA'PUM (Thuil. par. ed. 2d. p. 317. Duby, bot. gall. 

 1. p. 348.) scape thickened into an imbricately scaly bulb; 

 scales ovate-oblong, clothed with clammy hairs ; calycine seg- 

 ments free, bifid, with nearly equal, linear lobes ; corolla in- 

 flated ; upper lip 2-lobed : lower one 3-lobed ; stigma 2-lobed, 

 yellow. 2. H. Native of France, in sterile and argillaceous 

 soil, from the roots of Genista tinctoria, Wallr. diask. p. 32. 

 O. major, Lam. ill. t. 551. but not of Lin. O. genistas tincto- 

 riae, Vauch. mon. t. 1. Mor. hist. sect. 12. t. 16. f. 2. Plant 

 reddish-yellow. 



Var. fi, gracilis ; plant much more slender ; scales dilated at 

 the base ; flowers few, short. If . H. Native of France, from 

 the roots of Genista sagittalis. O. vulgaris, Lam. diet. 4. p. 

 621. ? D. C. fl. fr. 3. p. 489. O. genistae sagittalis, Vauch. 

 mon. Perhaps a species. 



Rape Broom-Rape. PL 1 foot. 



27 O. PRUINOSA (Laper. abr. suppl. p. 87.) scape fistular, 

 pilose, pruinosely grey, dilated into a middle sized bulb ; scales 

 lanceolate : floral ones narrow, shorter than the corolla ; calycine 

 segments deeply and narrowly bifid ; lips of corolla plicate at 

 the top : superior one bifid : lower one 3-lobed : lobes denticu- 

 lated ; stigma deeply divided, pale purple. 1(..H. Native of 

 the Eastern Pyrenees, on the roots of Faba satlva. O. fabaa 

 sativse, Vauch. mon. p. 37. t. 5. Flowers white. 



Frosted Broom-Rape. PL 5 to 1 foot. 



28 O. ARENA'RIA (Bieb. fl. cauc. 2. p. 83.) smoothish ; 

 scales lanceolate ; spike few-flowered ; floral scales smaller 

 than the corolla, and are, as well as the calyxes, smooth ; caly- 



