62 LXXXIX. BORAGINEiE (BAKER AND WRIGHT). [Echilim. 



2. E. longifolium, JDelile, Ft. Egypte, 184, t. 16, Jig. 3. Annual, 

 with slender root. Stems branched, with copious spreading bristles. 

 Stem-leaves small, sessile, linear-oblong; radical-leaves oblanceolate, 

 obtuse, narrowed into a short petiole. Spikes many, lax ; bracts 

 lanceolate, 4-6 lin. long. Calyx very bristly, 4 lin. long; segments 

 lanceolate. Corolla bright blue, twice as long as the calyx; lobes 

 small orbicular. Stamens reaching to the tip of the corolla-lobes. 

 Nuts ovoid, 2 lin. long, rugose on the outer face. — DC. Prodr. x. 23. 

 Schweinf. Beitr. Fl. Aethiop. 115. 



Wile land. Nubia : Soturba Mountains, Schiveinfurth, 2063 ! in Wadi 

 Mabas Wady Dongola and near El Korebr, Ehrenherg ex Schiveinfurth. 

 Also in Egypt. 



3. £. arenarium, Guss. Ind. Hort. Boccad. 1825 and PI. Ear. 88, t. 

 17. Annual or biennial. Stems short, diffuse, clothed with short 

 ascending bristles. Leaves all obtuse, oblanceolate. Spikes lax, 

 elongate ; bracts large, ovate-lanceolate. Calyx very hispid, 3 lin. long, 

 but little accrescent ; tube short ; teeth lanceolate. Corolla bright 

 blue 4_6 lin. long. Stamens comparatively short. Nuts ovoid, acute, 

 strongly tubercled. — DC. Prodr. x. 21 ; Schweinf. Beitr. Fl. Aethiop. 

 115. 



Nile Land. Sennar : near Wolet Medene (Wold Medineb), and near Roseires, 

 Cienkowshy ex Schiveinfurth. 



Also in Soutb Europe, North Africa, and Western Asia. 



Order XC. CONVOLVULACE^. (By J. G. Baker and 

 A. B. Kendle.) 



Flowers hermaphrodite (very rarely unisexual), regular (very rarely 

 slightly zygomorphic). Calyx inferior ; sepals 5 (very rarely 4), free 

 (rarely united at the base), much imbricate, equal or more or less 

 unequal, often, especially the outer, accrescent. Corolla gamopetalous, 

 usually funnel-shaped, sometimes more or less campanulate, or hypo- 

 crateriform, rarely urceolate ; limb subentire or 5-lobed, or deeply 

 5-partite (very rarely 4-partite), in bud generally induplicate- 

 valvate, often contorted, glabrous inside, frequently more or less 

 definitely marked on the outside into more or less hairy and veined 

 midpetaline areas, which are outside in the bud, separated by 

 glabrous episepaline areas. Stamens 5 (very rarely 4), inserted low 

 down in the corolla-tube, opposite the sepals ; filaments equal or 

 unequal, filiform, generally dilated and glandular hairy at the base, 

 rarely stipulate, rarely attached to scales ; anthers introrse, oblong, 

 often more or less sagittate at the base. Pollen spherical and spinose 

 all over, or spherical and smooth, or ellipsoidal and marked with longi- 

 tudinal or other folds. Hypogynous disc annular or cup-shaped, often 

 shallowly 5-lobed, sometimes obsolete. Ovary superior, entire, of 2 

 (rarely 3) united carpels, 2- (rarely 3-) celled, sometimes 1-celled, or by 



