BORRAGINACE.E. (BORAGE FAMILY.) 257 



Order 53. BORRAGIIVACE.E. (Borage Family.) 



Chictly rough-hairy hfrbs, with alternate entire leaves, and symuietri- 

 cal llowers with a 5-parted calyx, a regular o-lobeJ corolla, 5 stamens 

 inserted on its tube, a single style and a deeply 4-lobed ovary (oc<-4i- 

 sionally undivided), which forms in fruit 4 seed-like nutlets, each with 

 a single seed. — Flowers mostly on one side <»f the branches of a re- 

 duced cyme, imitating a scorpioid spike or raceme. 



A. Ovary undivided (or only laterally 4.1obed) and surmounted by the style. 



1. Coldenia. Calyx 5-parted ; the divisions narrow. Corolla short-funneironn ornearly 

 salverform; the lobes rounded, inibricated or sometimes partly convolute in the bud. 

 Style 2-cleft or -i-parted : ovary (in ours) laterally 4-lobed. Fruit separating at ma- 

 turity into 4 one-seeded nutlets, or by aboriion fewer. 



'2 Heliotropium. Calyx deeply 5-parted, persistent. Corolla salverform or funnelfornj. 

 plaited and mostly imbricated in the bud. Anthers connivent, sometimes cohering 

 by pointed tips. Style entire or none: stigma [.eUate-annidar, forming a coinplet« 

 ring, surmounted usually by an entire or 2-lobed tip or appendage : ovary 4-celled. 

 Fruit 2 or 4-lobed, separating into two 2-celled and 2-seedeil carpels or more com- 

 monly into 4 one-seeded nutlets. 



B. Ovary 4-parted from above into 1-celled 1-ovuled divisions sun-ounding the base of the 

 undivided style ; stigma terminal, not annular. 



* Nutlets obliquely attached by more or less of the ventral face or angle, or by the base or 



prolongation of it, to 

 1- The more or less elevated gj-nobase which supports the style, not stipitate. 



3. Ediinospermuiu. Nutlets armed (either along a distinct margin or more or less ov«'r 



tlie whole back) with glochidiate jirickles, forming burs. Calyx refloxed or open in 

 fruit. Corolla white or blue ; the throat closed with i»rominent fornicate appen- 

 dages. 



4. Omphalodes. Nutlets ascending or subhorizontal, with depressed back surrounded 



by a wing or margin which at maturity is reflexed, and its jiectinate or spinulose teeth 

 when present not glochidiate (disk sometimes so), somewhat supra-basal or ventral in 

 atta'^hment. Corolla rotate or very short funnelform, bright blue. 



5. Krynitzkia. Nutlets erect, convex on the back and naked, wholly nnappcndagcd 



(rarely with a narrow jilane border), attached by the inner side above the middle or 

 more or less towards the base. Corolla rotate or funnelform, white, and mostly small 



•+- 4- Nutlets sessile or obscurely stipitate on a flat or merely convex recei)t'icle. 

 0. Mertensia. Corolla from tubular-funnelform or trumpet-shajied to almost campainilat«, 

 witli open throat, bearing obvious or obsolete transverse folds for crcst.s. Stigma 

 entire. Nutlets attached by a small or short scar just above the base to a barely or 

 sometimes strongly convex gynobase. Often smooth and glabrous, with blue or 

 rarely white flowers, mostly bractless. 



* * Nutlets sessile and directly (usually centrally) attached by the very V>ase to a plane 



gynobase. 

 7. Myosotis. Corolla short-sal verform or almost rotate : its throat contracted by trans- 

 verse crests; the rounded lobes convolute in the bud. Nutlet.s small, snuwtli and 

 shining, thin-crustaceous. Racemes mainly ebracteate. 

 S. Lithosperiuum. Corolla salverform, funnelform, or sometimes ai>proachingramranu. 

 late, either naked or with pubescent lines or intruded ;.;ibl>osities or low tnuuvcrM 

 crests at the throat. Nutlets ovoid, bony, either polished and whit* or dull and rough. 

 Flowers all subtended by leaves or bracts. 



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