BORAGINACEAE. 303 



Roots imparting a purple 



stain; spikes leafy 



bracted. 4. Eremocarya. 



Roots not imparting a 



stain; spikes naked. 7. Cryptanthe. 



Flowers yellow. 8. Amsinckia. 



1. HELIOTROPIUM L. Heliotrope. 



Herbs or shrubs with alternate mostly entire petioled 

 leaves, and small blue or white flowers in scorpioid spikes 

 or scattered. Calyx-lobes lanceolate or linear. Corolla 

 salver-shaped or funnelform, naked in the throat. Sta- 

 mens included; filaments short or none. Style terminal, 

 short or slender; stigma conic or angular. Fruit 2-4- 

 lobed, separating into 4 1-seeded nutlets or into 2 2- 

 seeded carpels. 



1. H. curvassavicum L. Perennial, fleshy, glabrous throughout, 

 more or less glaucous, branched, diffuse, the branches 15-45 cm. 

 long; leaves oblanceolate or sometimes linear, 2.5-5 cm, long, obtuse 

 at the apex, narrowed into petioles or the upper sessile; scorpioid 

 spikes densely flowered, bractless, mostly in pairs; flowers about 4 

 mm. broad; calyx-segments lanceolate, acute; corolla white or rarely 

 lavender; stigma annular. 



Common in low saline places. 



2. PECTOCARYA DC. 

 Low slender annuals with strigose-hirsute pubescence, 

 small narrow leaves, and small white flowers scattered 

 along the stems and branches. Calyx deeply 5-cleft, 

 spreading or reflexed in fruit, persistent. Corolla with 

 a circle of processes or crests which almost close the 

 throat. Stamens included. Nutlets flat, thin, radiately 

 divergent, bordered at apex or all around with a row of 

 hooked bristles. 



Nutlets with entire winged margins, uncinate only 



at apex. 1. P. penicillata. 



Nutlets beset with uncinate bristles on the 

 margins. 

 Nutlets 4 mm. long. 2. P. linearis. 



Nutlets 1 mm. long. 3. P. setosa. 



1. P. penicillata (H. & A.) DC. Closely resembling the last 

 in habit, usually smaller and densely canescent with appressed hairs 

 throughout; nutlets oblong, 2 mm. long, the apex covered with 

 slender uncinate bristles, the winged margin entire, incurved, 

 somewhat broader at the base and sometimes bearing 1 or 2 uncinate 

 bristles. 



Common in all valleys and foothills, mostly in dry ground. 



