ORDER 90. BORRAGINACE^E. 559 



T heliotropoides Hook. Shrubby at base, with herbaceous, hairy branches, 

 erect; Ivs. oval, pubescent, obtuse, undulate on the margin; ped. terminal, 2 or 

 3 times dichotomous ; cor. tube included, lobes obtuse, fruit globular. The fls. 

 are numerous, small, pale lilac, and inodorous. \ Buenos Ayres. 



2. HELIOTRO'PIUM, Tournef. HELIOTROPE. (Gr. r\\io^ the sun, 

 rpeTTd), to turn ; the flowers were said to turn with the sun.) Calyx 5- 

 parted, corolla salver-form, lobes shorter than the tube, the sinuses pli- 

 cate and prominent in the bud ; anthers sessile ; style short, stigma 

 conical, the achenia cohering at base, at length separable. Herbs or 

 shrubs. Fls. white or purple, in unilateral, scorpoid spikes. 



1 H. Europaeum L. Herb erect, pubescent ; Ivs. oval, obtuse at each end, petio- 

 late, wavy; spikes lateral and terminal, single or forked ; cal lobes hirsute, obtuse, 

 equaling the cor. tube, and also as long as the fruit. Rocky banks, at Har- 

 per's Ferry, &c. A delicate annual 8 to 12' high. Lvs. 1 to 2' long, two-thirds 

 as wide. Fls. small, white, in spikes several inches in length. Aug. f Eur. 



2 H. curassavicum L. Herb glabrous, procumbent at base ; tvs. linear-lanceo- 

 late. obtuse, entire, glaucous ; spikes usually forked ; sep. obtuse, much shorter than 

 the fruit. D Sandy shores, St. Louis to N. Orleans. A foot high. Lvs. 1 to 2' 

 by 2 to 3". Fls. very small, bluish. W. Ind. 



3 H. Penivianum L. Shrubby, erect, pubescent, somewhat hoary; Ivs. 

 short-petiolate, lance-ovate, rugous ; spikes numerous, aggregated, corymbous ; cor. 

 tubetwice longer than the calyx. A pretty green-house shrub, 1 to 2f high. Lvs. 

 serrulate, twice as long as wide. Fls. very fragrant, white or tinged with purple. 

 f Peru. 



3. HELIOPH'YTUM, DC. (Gr. ^of, the sun, 0vr6v, a plant; from 

 its relation to Heliotropium.) Calyx 5-parted ; corolla salver-form, 

 throat constricted, 5-rayed; anthers included; style very short; nuts 

 2, each 2-celled (sometimes with 2 additional empty cells). Herbs with 

 habit of Heliotrope. 



H. Indicum DC. Herbs erect, branching, hairy ; Ivs. ovate, erose-serrulate, acute, 

 base abruptly contracted into a petiole, often subcordate, rugous, very veiny; 

 spike terminal, solitary, simple (rarely forked !) ; cor. much exserted, pubescent ; 

 fr. miter-form, the two nuts divaricate, showing the 4 empty cells between. 

 "Waste grounds, pastures, 111., Ind. to Ga. St. furrowed, 1 to 2f high. Lvs. 2 to 

 3' long, or more. Spikes 2 to 6' long. Cor. blue or purple. Carpels bifid at apex, 

 S. Am. E. Ind. 



4. ECH'IUM, Tourn. VIPER'S BUGLOSS. (Gr. %, a viper ; from 

 the spotted stem of some species.) Calyx 5-parted, segments subulate, 

 erect ; corolla campanulate, obliquely and unequally lobed, with a short 

 tube and naked orifice ; stigma cleft ; achenia tuberculate, base flat, 

 imperforate. Herbs or shrubs. Fls. irregular, in spicate, panicled 

 racemes. 



E. vulgare L. St. herbaceous, rough with bristles and tubercles; cauline Ivs. 

 lanceolate, and rough with bristles; spikes lateral, hairy, deflected. (pA rough 

 plant, with large, handsome, violet-colored flowers, found in fields and waste 

 grounds, N. States. Stem 18 20' high, round, with entire, dull green leaves, 

 which are 2 6' long, and ^ as wide, lower ones petiolate, upper ones amplexi- 

 caul. Flowers in numerous, crowded, axillary, recurved spikes, appearing in 

 June and July, Eur. 



5. BORRA'GO, Tourn. BORRAGE. Calyx 5-parted; corolla rotate, 

 with acute segments ; orifice crowned ; filaments converging ; achenia 

 ovoid, muricate, excavated at base, inserted lengthwise into an excavated 

 receptacle. European herbs. 



