BORAGINACEAE 395 



acute or shortly acnminate, base usually rounded. Cymes terminal, dichoto- 

 mons, scorpoid, 10 cm in diameter or less. Flowers sessile, pale-green, 5- 

 Rierous. Calyx 1.5 mm long, pubescent. Corolla 5 mm long, the 5-lobed 

 limb 3.5 mm in diameter. Fruits sessile, globose, 4 to 5 mm in diameter! 

 (Fl. Filip. pi. U6.) 



In thickets, Pasay, fl. most of the year, rare in our area; widely distrib- 

 uted in the Philippines and not uncommon. Mauritius to Malaya and 

 Australia. 



4. HELIOTROPIUM Linnaeus 



Annual, more or less villous herbs. Leaves alternate. Cymes terminal, 

 spike-like or forked, scorpoid. Flowers small, perfect, white or pale-blue. 

 Calyx 6-Iobed, the segments lanceolate or linear. Corolla tubular, throat 

 not hairy, lobes short, spreading. Stamens 5, inserted on the coroUa-tube, 

 included. Ovary completely or imperfectly 4-celled, 4-ovuled; style term- 

 inal, ending in a depressed-conical or flat disk. Fruit dry, 2- or 4-lobed, 

 of 2 or 4 nearly free or more or less united nutlets. (Greek "sun" and 

 "to turn.") , 



Species about 100, widely distributed in warm countries, 3 or 4 in the 

 Philippines. 



1. H. INDICUM L. Hinlaloyon (Tag.); Trompa elefante (Sp.-FiL). 



An annual, erect, branched, hirsute plant 15. to 50 cm high. Leaves 

 opposite or alternate, ovate to ovate-oblong, somewhat hairy, acute or 

 acuminate, base decurrent along the petiole, 3 to 8 cm long. Spikes terminal 

 or leaf-opposed, 3 to 10 cm long, curved, flowers all on one side the lower 

 ones opening first. Calyx green. Corolla pale-lavender to nearly white, 

 about 5 mm long, the limb 3 to 3.5 mm in diameter. Fruit 4 to 5 mm long, 

 composed of 2, ovoid, beaked cocci or nutlets. (Fl. Filip. pi. 18i.) 



A common weed in waste places, fl. all the year; undoubtedly introduced 

 here, throughout the Philippines. Tropics generally. 



5. TRICHODESMA R. Brown 



Annual, erect, hispid, branched herbs. Leaves opposite, entire, the upper 

 ones alternate. Flowers pedicelled, axillary, by reduction of the leaves 

 forming terminal racemes, 5-merous. Calyx deeply cleft, the lobes en- 

 larged in fruit. Corolla-tube cylindric-campanulate, the lobes 5. Stamens 

 5, the anthers convivent in a cone, tips at length twisted. Ovary 4-celled; 

 style terminal. Fruit somewhat 4-ribbed, composed of 4 nutlets, finally 

 separating. (Greek "hair" and "band," in reference to the anthers being 

 bound together by hairs.) 



Species about 10, warner parts of Africa and Asia, to Australia, 2 in- 

 troduced in the Philippines. 



Calyx-lobes in fruit cordate or hastate at the base 1. T. indicum 



Calyx-lobes in fruit rounded or acute at the base 2. T. zeylanicum 



1. T. INDICUM (L.) R. Br. 



An erect or diffuse, branched, annual herb, 50 cm high, villous and 

 bristly-hairy. Leaves sessile, lanceolate, 2 to 8 cm long, acute or obtuse, 

 base cordate. Flowers axillary, solitary, or by reduction of the upper 

 leaves becoming racemosely arranged. Calyx 1 to 1.3 cm long, the lobes 

 acuminate, hastate at the base, -green, villous. Corolla pale-blue, the limb 

 about 1.5 cm in diameter, the lobes acuminate. Staminal-cone woolly on 



