262 SYSTEMATIC BOTANY, 



2. Gilia. Calyx 5-cleft ; segments acute. Corolla-tube long or 

 short ; limb regularly 5-lobed. Stamens 5, equal, inserted at the top 

 of the tube. Capsule oblong or ovoid, few to many-seeded. 



G. TRICOLOR (Three-colored Gilia). Stem erect, nearly smooth ; leaves 

 alternate, twice and thrice pinnatifid ; segments narrowly-linear ; flowers 3-6 

 together, in cymes, arranged in panicles, bractless. A garden annual, one 

 foot high. . 



3. Polemonium. Calyx campanulate, 5-cleft. Corolla rotate- 

 campanulate, 5-lobed, erect ; tube very short. Filaments furnished 

 with hairy appendages at base. Cells of the capsule few, many-seed- 

 ed. 2f 



P. CCERULEUM (Greek Valerian]. Stems stout, clustered, smooth, sim- 

 ple, erect, hollow ; leaves mostly radical, alternate, in long, channeled peti- 

 oles, pinnately parted ; flowers erect, in a terminal, corymbose panicle ; 

 corolla blue, rather large. In cultivation, 1-2 feet high. June. 



Order LV. BORRAGINACE^E (Borage Family], 

 Herbs ; sometimes shrubby plants. Stems round. Leaves 

 alternate, usually rough. Flowers often in i -sided clusters, un- 

 folding spirally. Calyx free from the ovary, persistent, regular, 

 consisting of 5 sepals, more or less united at base. Corolla regu- 

 lar, rarely irregular, the limb 5-toothed, often with a row of scales 

 in the throat. Stamens 5, inserted on the corolla alternately with 

 its lobes. Ovary deeply 4-lobed. Style i, usually central, pro- 

 ceeding from base of the ovary, sometimes terminal. Fruit con- 

 sisting of 4 achenia. 



Nutlets with hooked prickles 



f Corolla salver-form Echinospermu 

 \ Corolla funnel-form Cynoglossum. 

 f Corolla rotate Borrago. 



Nutlets excavated at base 



(. Corolla tubular Symphytum. 



Nutlets not I f Plants smooth Mertensia. 



O I prickly] f Corolla 



M | Nutlets not exca- funnel-form { Plants rough, nutlets smooth, 



L vatedatbase -I i. stony Lithospermum. 



[ Corolla wheel-shaped Myosotis. 



I. Borrago. Calyx 5-parted. Corolla rotate, 5-cleft ; segments 

 acute ; tube with a crown at throat. Achenia rounded, with a perfora- 

 tion at base. 



B. OFFICINALIS (Borage). Rough with scattered bristles ; stem erect, 

 branching ; leaves ovate ; lower with short petioles ; upper sessile ; flowers 

 large, in nodding racemes, sky-blue ; calyx spreading. Common. In gar- 

 dens, 2 feet high. June-September. 



