
Boraginaceae 329 
AA. Nutlets not roughened with points, the projections rounded and smooth, nearly 
flat on the back, not keeled. E. 
A. tessellata Gray 
ASPERUGO MADWORT 
Annual, rough-hispid, procumbent. Leaves entire, alternate or the upper some- 
times opposite. Flowers small, blue or nearly white, 13 together in the upper leaf- 
axils. Calyx campanulate, unequally 5-cleft, much enlarged and folded together in fruit: 
the lobes incised. Corolla tubular-campanulate. Stamens included. Style short; stigma 
capitate. Nutlets of the fruit 4, ovoid, erect, granular-tuberculate, keeled, laterally at- 
tached above the middle to the elongated-conic receptacle. (L. asper—rough; referring 
to the leaves.) E. A. procumbens L. 
MYOSOTIS FORGET-ME-NOT 
Low, annual or biennial or perennial. Flowers in racemes orvspikes, small, blue or 
pink or white. Corolla salverform or rotate; tube rarely exceeding the calyx; throat with 
small blunt crests at the base of the lobes. Stamens included. Style filiform, included. 
Nutlets smooth, somewhat compressed, thinly crustaceous, attached at very base to a 
flat swelling; scar minute. (Gk. myos—of a mouse, otos—of an ear; hence mouse-ear- 
like; referring to the short soft leaves.) 
A. Corolla blue; calyx open in fruit; calyx-hairs appressed, none of them hooked nor 
gland-tipped. 
B. Calyx-lobes much shorter than the calyx-tube. W. (M. palustris. ) } 
M. scorpioides L. (Garden Forget-me-not) 
BB. Calyx-lobes as long as the calyx-tube. W. E. i 
M. laxa Lehm. (Blue Forget-me-not) 
AA. Corolla white; calyx closing on the fruit; calyx-hairs spreading, some of them 
minutely hooked or gland-tipped. W. E. 
M. macrosperma Hngelm. (White Forget-me-not) 
MERTENSIA. LUNGWORT 
Perennial, glabrous or pubescent. Leaves sometimes punctate. Flowers rather 
large, blue or purple or white, in panicles or cymes or racemes. Calyx lobes linear to 
triangular, not much enlarged in fruit. Corolla tubular-funnelform or trumpet-shaped, 
crested or unappendaged in the throat. Stamens included or nearly exserted. Ovary 
4-divided; style filiform. Nutlets erect, coriaceous, wrinkled when mature, attached 
above their bases to the convex or nearly flat receptacle. (Honor of F. K. Mertens, 
a German botanist.) 
A. Plants of the seashore; nutlets fleshy, smooth and shining. W. (Pnuemaria mari- 
tima. ) M. maritima 8. F. Gray (Sea Lungwort) 
AA. Plants not of the seashore; nutlets dry, wrinkled when mature. 
B. Plants 5—10 dm. high; leaves thin, wide. 
C. Leaves soft-hairy beneath, upper surface various; calyx glabrous or hairy on 
the back. 
D. Upper leaf-surface stiff-hairy. 
E. Calyx-lobes canescent. E. 
M. membranacea Rydb. 
EE. Calyx-lobes not canescent. 
F. Calyx-lobes pubescent on the back. W. (M. sibirica for our region.) 
M. platyphylla Hel. 
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