148 c. BORAGINEJE. (C. B. Clarke.) [Heliotropium. 



6. HELIOTROPIUM, Linn. 



Annual or perennial herbs, rarely (non-Indian species) shrubby, villous or 

 scabrous. Leaves alternate. Cymes terminal, dichotomous ; branches often 

 long, scorpioid ; flowers small, white or nearly so in the Indian species ; bracts 

 small, 0, or leafy (inflorescence axillary). Calyx 5-partite or -lobed; segments 

 lanceolate or linear (except in Sect. Piptoclaina). Corolla tubular, throat not 

 hairy ; lobes 5, imbricate or induplicate in the bud, spreading in flower. Stamens 

 5, on the corolla-tube, included, filaments very short ; anthers ovate or lanceo- 

 late. Ovary completely or imperfectly 4-celled, 4-ovulate ; style terminal, 

 short or long, ending in a depressed conical or flat disc ; stigma above the disc 

 or short or elongate-lanceolate, entire, rarely with 2 linear branches (Sect. 

 Ditrichostigma). Fruit dry, 2-4-lobed, of 4 more or less free nutlets. Seeds 

 straight or curved, albumen small or (rarely plentiful). Species 100, in the 

 tropical and temperate zones of both hemispheres. 



SECT. 1. BXesserschmidia. Corolla-lobes patent, caudate-acuminate. 

 Style longer than the stigma. 



1. H. zeylanicum, Latrik. III. ii. 393, not of Wall; leaves narrowly 

 lanceolate, spikes elongate ebracteate, stigma short-oolong densely hairy inclu- 

 ded in the corolla-tube. Burm. Fl. Ind. t. 16, fig. 2. Wight Ic. t. 892 ; H. 

 paniculatum, Heyne in Herb. Rottler, not of Br. nor of Roxb. Tournefortia 

 subulata, Hochst. ; A. DC. Prodr. ix. 528; Dalz. $ Gibs. Bomb. Fl. 171. T. 

 Royleana & Edgeworthii, DC. Prodr. ix. 527, 529. T. zeylanica, Wight III. t. 

 170. Messerschmidia hispida, Benth. in Royle III, 306. 



W. INDIA, from the Punjab to the W. Deccan Peninsula; Royle, Edgeworth, 

 Wight, &c. DISTRIB. Tropical Africa. 



Annual, erect, 1-3 ft., scabrous-hairy. Leaves 1^ by ^ in., narrowed at both ends, 

 subentire, sessile ; nerves obscure in the upper surface. Spikes 2-6 in. in fruit ; 

 flowers sessile, 1-2-ranked. Sepals in., ovate, acute. Corolla-tube % in., wider in 

 the upper half, minutely setose without ; lobes -^ in. Style glabrous, half as long 

 as the corolla-tube ; stigma surrounded by the stamens in the swollen upper half. 

 Fruit ^ in., of 2 rugose pitted 2-seeded nutlets. 



SECT II. Catimas. Corolla-lobes with an abruptly inflexed mucro. 

 Stigma elongate-conic. 



2. K. dasycarpum, Ledeb.; Eichiv. Itin. Casp,-Caucas. ii. t. 5; leaves 

 small elliptic, spikes few-flowered, style short, stigma minutely scabrous in- 

 cluded in the corolla-tube. Bunge in Bull. Soc. Imp. Nat. Mosc. 1869, 323 ; 

 Boiss. Fl. Orient, iv. 140. H. Schrenkianum, Ledeb. Fl. Ross. iii. 102, Jide 

 Boiss. 1. c. H. brahuicum, Stocks in Hook. Kew Journ. iv. 173. H. luteum, 

 Aitchison Cat. Punjab. 94 (? Pair). 



PANJAB; Peshawur, Stewart. DISTRIB. Beloochistan, Cabul, Persia, Turkestan, 

 Soongaria. 



Woodv, rigid, 6-18 in., suberect, scabrous-hairy. Leaves f by ^ in., mostly 

 cuneate at both ends, subentire, sessile or lower obscurely petioled ; nerves obscure in 

 the upper surface. Spikes in flower short, in fruit 2-4 in., lower flowers often an inch 

 apart ; flowers mostly sessile, but stray lower flowers have pedicels ^-f in. Sepals 

 ~ in., oblong-lanceolate. Corolla-tube in., cylindric or slightly narrower upwards, 

 hairy without. Filaments rather long ; anthers ovate-oblong near the top of the tube. 

 Style about A the length of the stigma, minutely retrorse setose (in Stocks' examples 

 as in Eichwald's picture, but Boissier says style as long as the stigma). Fruit small, 

 glabrous in Stocks' example, sometimes silky (Boiss.). Very near H. luteum, Poir. 

 (DC. Prodr. ix. 532) which has larger flowers and fruits, and more rugose leaves. 



