180 BORKAGINACE^. Cordia. 



nicate scales. Stamens and style included: stigma 2-lobed. Nutlets oToid, oblique, 

 coriaceous, coarsely reticulate-rugose, erect, almost laterally attached to a thickened 

 protuberant gynobase ; the scar large, oval, excavated or perforate, bordered by a 

 thickened cartilaginous ring. 

 2 1 . ECHIUM. Corolla f unnelform, with dilated throat oblique and not at all appendaged ; 

 the lobes unequal, roundish, erect or slightly spreading. Stamens unequal and exserted : 

 filaments filiform. Style long and filiform, 2-cleft at apex : stigmas small. Nutlets car- 

 tilaginous, rough or rugose, ovoid, acute, erect, fixed to the flat gynobase by a plane and 

 marginless scar. 

 BoERAGO OFFICINALIS, L. (Borage), With Very rotate blue corolla, is a not uncommon 

 annual in country gardens, but does not run wild. Omphalodes unifolia, Moench, of 

 S. Europe, is given in Hooker's Flora Boreali-Americana, on the strength of a specimen re- 

 ceived from Newfoundland, to which it cannot be native, and the plant is rare in gardens, 

 in which 0. verna is a hardy perennial, but it does not escape. 



1. CORDIA, Plumier, L. (Valerius Cordus, a German botanist of the 16th 

 century.) — Tropical or subtropical trees or shrubs, the greater portion American. 

 — Benth. & Hook. Gen. ii. 838. 



§ 1. Corolla large, an inch or two long, f unnelform, deciduous ; the tube longer 

 than the cylindraceous calyx; its lobes and the stamens 5 to 12 : drupe enclosed 

 in the enlarged calyx: inflorescence open-cymose. — % Sehestenoides, DC. 



C. Sebestena, L. Tall shrub or small tree, scabrous-pubescent or smoothish : leaves 

 ovate (4 to 8 inches long) : flowers pedicelled : calyx not striate; the teeth irregular and 

 obtuse : corolla varying from orange to flame-color, 5-8-lobed. — Bot. Rep. 1. 157. C. speciosa, 

 Willd., DC. — Keys of Florida. (W. Indies, &c.) 



C. Boissieri, A. DC. Soft-tomentose : leaves oval or oblong-ovate, when old minutely 

 rugose and somewhat scabrous above : calyx not pedicelled, somewhat campanulate and 

 striate ; the teeth often acute : corolla white with a yellow centre, 5-lobed, externally 

 downy. — DC. Prodr. xi. 478 ; Torr. Bot. Mex. Bound. 135. — Southern frontier of Texas 

 and New Mexico, Berlandier, Gregg, Schott, &c. (Mex.) 



§ 2. Corolla small or proportionally large, salverfbrm or funnelform, deciduous : 

 calyx short, not sulcate-striate ; its lobes and those of the corolla as well as stamens 

 no more than 5, sometimes 4 : flowers in our species capitate-glomerate, and the 

 leaves serrate ! — § Myxa, Endl. 



C. globosa, HBK. Shrub hirsute or somewhat hoary : branches slender, spreading : 

 leaves oblong-ovate, obtusely serrate (an inch or two long), the pinnate veins rather con- 

 spicuous and the upper surface often rugose: pedimcle mostly short: calyx-teeth nearly 

 filiform, longer than the tube: corolla funnelform, white (2 to 4 lines long), about twice 

 the length of the calyx. — Nov. Gen. & Spec. ill. 76. Varrorda globosa, L., & F. buUata in 

 part. Cordia buUata, DC. Prodr. ix. 496 ; Chapm. Fl. 329. — Keys of Florida, Blodgett, &e. 

 (W. Ind. to Isthmus.) 

 ,C. podocephala, Torr. A foot or two high, woody only at base, minutely strlgose- 

 hirsute, scabrous : branches slender, erect : leaves varying from ovate-lanceolate to linear- 

 lanceolate, narrowed at the base into a short petiole, coarsely serrate (an inch or two 

 long) ; peduncles filiform, 2 to 4 inches long, bearing a small and very dense head: caly.x- 

 teeth triangular-subulate or ovate, very much shorter than the tube : corolla broadly fun- 

 nelform, white or pale purple (half inch or more long), its narrow tube hardly exceeding 

 the calyx. — Bot. Mex. Bound. 135. — Lower Rio Grande, Texas to the borders of New 

 Mexico, Wright, Siiielmr, Schott, &c. (Adjacent Mex.) 

 C. Geeggii, Torr. 1. c, which is hardly of this section, is a Mexican species, found only at 



a considerable distance from our frontiers. 



2. BOURRERIA, P. Browne. CNamed after one Bourrer, q Nuremberg 

 apothecary, not Beurrer, therefore the orthography Beurreria, Jacquin and others, 

 is not to prevail over the original form.) — Tropical American trees and shrubs ; 



