684 



BORAGINACEAE (BORAGE FAMILY) 



rough-pubescent, oblong-lanceolate or linear-oblong ; calyx- 

 lobes much shorter than its tube; limb of corolla 5-8 mm. 

 broad, sky-blue, with a yellow eye. (M. palustris 

 Hill.) In wet ground, Nfd. to w. N. Y., and 

 southw. May-Sept. (Nat. from Eu.) FIG. 863. 

 2. M. laxa Lehm. Perennial from filiform 

 subterranean shoots ; stems very slender, decum- 

 bent ; pubescence ah 1 appressed ; leaves lance- 



963. M. scorpioides. olate-oblong or somewhat spatulate ; calyx-lobes 

 as long as the tube ; limb of corolla rarely 5 mm. 



broad, paler blue. In water and wet ground, Nfd. to Ont., and 



southw. May-Aug. (Eu.) FIG. 864. 



* * Calyx closing or the lobes erect in fruit, clothed with spreading hairs, some 

 minutely hooked or gland-tipped; corolla small; annual or biennial. 



*- Calyx about equally b-cleft. 

 + Pedicels in fruit longer than the calyx. 



3. M. arv6nsis (L.) Hill. Hirsute with spreading hairs, 

 erect or ascending, 1 1.5 dm. high ; leaves oblong-lanceolate, 

 acutish ; racemes naked at the base and stalked ; corolla blue, 

 rarely white. Fields, etc., Nfd. to Minn, and W. Va. June- 

 Aug. (Eu.) FIG. 865. 



w- Pedicels shorter than the calyx, the latter about 4 mm. long. 



vERsfcoLOR (Pers.) Sm. Slender, 1-3 dm. high, mostly simple at 

 base, often branched above; stems and leaves 

 uniformly pubescent with ascending straightish 

 hairs; upper leaves somewhat pointed ; racemes 

 loose, mostly naked at base ; pedicels oppressed- 

 pubescent; corolla pale yellow, changing to 

 blue, then to violet, the tube exceeding the 

 calyx ; style distinctly longer than the nutlets. 

 Fields, " N. Y.," and Del. May-July. (Nat. 

 from Eu.) FIG. 866. 



5. M. MICRANTHA Pallas. Stems 0.5-2 dm. 

 high, branching from the base, with the oblong 

 or lanceolate blunt leaves pubescent with mixed 

 straight and divergent hooked hairs ; scattered 

 flowers produced from the lower axils ; pedicels 

 very short, mostly with some divergent hooked 

 hairs ; corolla blue, the tube barely equaling 

 the calyx ; style rarely equaling the nutlets. 

 (M. collina Am. auth., not Hoffm.) Road- 

 sides, old fields, etc., Mass, to Ont. and O. 

 May-Aug. (Nat. from Eu.) FIG. 867. 



865. M. arvensis. 



4. M. 



866. M. versicolor. 



H- -- Calyx someichat 2-lipped, unequally and deeply b-cleft. 



867. M. micranthft. 6. M. virglnica (L.) BSP. Bristly-hirsute, branched from 

 the base, erect, 0.5-4 dm. high ; leaves obtuse, linear-oblong, 

 or the lower spatulate-oblong ; racemes leafy at the base ; 

 corolla very small, white, with a short limb ; pedicels in fruit 

 erect and appressed at the base, usually abruptly bent outward 

 near the apex ; calyx very hispid, 3-5 mm. long. (M. verna 

 Nutt.) Dry banks and rocky woods, Me. to Ont. and Minn., 

 westw. and southw. Apr.-July. FIG. 868. Passing westw. g^ M V j rginica 

 and southw. to the larger formal var. MACROSPERMA (Engelm.) 

 Fernald (M. macrosperma Engelm.), with looser inflorescence and larger calyx 

 and nutlets. 



