3 to Plants of the Rocky Mountains— Supplement IV. 



* * Calj/x 5-partitus, in M. oUongifolia et M. alinna quandoque alte 

 5-fidus. 



■*- Corolla tubo quam livibus {i. e. pars dilatata supra faucem) 2-3plo 

 longiore. 



5. M. Davl'rica, Don. Gracilis; foliis caulinis liiiearibus supra cum 

 calyce subincano-hlrtis ; corolla iina basi annulato-pilosa, cset. glabra. Si- 

 beria. The hairy ring (much less conspicuous than that of the foregoing 

 species) is here at the very base of the corolla, occupying the position in 

 which ten obscure glands or slight thickened spots are generally dif'cern- 

 able: these are most evident in the following species, and in M.alpina. 



6. M. OBLONGiFOUA, DC, Hook. Kew Jour. Bot. 3, p. 295. Fulmo- 

 naria oblongifolia, Nutt. I Lilhospermum marginatum, Lehm. in Ilook. 

 n. Bor. Am. Humilis; foliis caulinis oblongis vel spathulato-lanceolatis 

 plerumque obtusis; segmentis calycis Janceolatis seu linearibus acutis 

 corollae tubo intus glaberrimo 2-3'-plo brevioribus. Interior of Oregon, 

 Utah, &c. Varies with the sepals very narrow and ciliate with long and 

 rigid bristles, as inNuttall's original specimens collected by Wyeth ; or 

 with these ciliae minute or sparse or obsolete, as in most specimens; in 

 Geyer's No. 316, the calyx is hardly 5-parted, and its segments broader; 

 in Spalding's, from Clear Water, the leaves are unusually broad. The 

 leaves resemble those of Heliotropium Curassavicum. 



-^ -.- Corolla tubo quam. Urabus ad summum sesqidlongiore. 

 _ +-!■ Elat(e, l-3-pedales : folia caulina ovata seu ovato-lanceolata, acutis- 

 acutaia, costato-venosa ; corollce semipoUicares seu, 



L. denticulatum, Hook. & Arn. from Kotz.^bue's 

 Sound in Beechev's Voyage, p. 128, in herb. Torr., is certainly of this 

 species, which probably occurs in Northeastern Asia also. H. En^^el- 

 mann's specimens from Medicine-Bow Mountains and Dr. Parry's JNo. 

 286 are glabrate and dwarf mountain forms of M. paniculata, with barely 

 acute leaves, and are Pursh's Pulmonaria lanceolata. Nuttall's F. mar- 

 ginata is much the same. 



8. M. SiniRicA, Don, non DC. M. denticulnta (Don.) & ciUaUt, DC 

 {Pulm. Sibirica, Linn.) Glaucescens, subpubescen*, vel rrhibra; segmen- 

 tis calycis oblongis seu oblongo-linearibus obtusis ciliohitis tiibo coroHs 

 intus sparsim piloso vel fere glabro 2-4-plo brevioribus. Kooky Moun- 

 tains, Eastern Siberia. 



■^-^ -•-+ Pumila : folia caulina obtusa vel acutiuscula, vix venosa: corol- 

 las i-^-pollicares. 



9. M. ALPiNA, Don. AT. Drummondii, Don. Pulmonaria alpimjo^^- 

 Lilhospermum Drummondii, Lehm., in Ilook. Fl. Bor.-Arn. Spith^f"®^ 

 ad subpedalem ; foliis spathulato-obiongis lanooolalis vol supremis oblon- 

 go-ovatis parvulis; segmentis calycis nunc ovato seu oblongo-Ianceolatis 

 obtusmsculis nunc lineari-lanceolatis acutis oilintis corolljB tubo limbum 



