ORDER 81. PRIMULACEJS 211 



1. HOTTONIA, L. WATER-FEATHER. Calyx 5-parted. Cor. salver 

 form, with a short tube, and a flat, 5-lobed limb. Sta. inserted in the tube 

 of the corolla, included. Stig. globous. Caps, globous-acuminate. ? if 

 Fleshy, with pectinate-pinnatifid, submersed, radical leaves. 



H. In data Ell. St. immersed, with a whorl of Ivs. (1-20 t or near the surface ; scapes 

 clustered, jointed, hollow, 8 KX, bearing several whorls of small white fls. Pools, 

 X. and S April June. Curious. 



2. PRIMULA, L. PRIMROSE. AURICULA. Cal. angular, 5-cleft. Cor. 

 sah-or-shaped or often rather funnel-shaped, with 5 entire or notched or 

 i)ifid lobes. Sta. included, fil. very short. Caps, ovoid, 5-valved, valves 

 often bifid, opening at the top, Go-seeded. Herbs with the leaves all radi- 

 cal and flowers in an involucrate umbel, often showy. 



* Native, wild species. Corolla salver-form, the lobes abruptly spreading. . .Nos. 1, 2 



* Exotic. a Corolla salver-form, the lobes abruptly spreading Nos. -3, 4 



- -a Corolla funnel-form. b Leaves rugous, hairy, toothed Nos. 5, 6 



b Leaves plain, smooth, often entire Nos. 7, 8 



I P. .11 1st a ssi ii ioa MX. Lvs. ppatulate, dent-crenate, green both sides ; invol. 1-8- 

 flwd., t as long as pedicels ; cor. lobes obcordate, tube much exserted. Lake shores, 

 Vt. (Willoughby) N. Y. (Seneca), and N. 37'. Fls. 5" broad, white. Jn. Delicate. 

 8 P. fartnosa L. Bird's-eye P. Lvs. lance-elliptic, obtuse, dentic. at apex, whitish- 

 mealy beneath, as well as the S-90-3wd. invol. ; cor. pale-purple, with a yellow centre, 

 its lobes bifid Lake shores, Mich., Me. (A. H. Smith), and N. 6 12'. June, July. 



3 P. GRANDIFLORA. Common P. Lvs. ohovate-oblong ; umb. radical ; cor. limb flat, yel- 



low, varying to all shades of orange, and red, to white, single or double. Europe. 



4 P. PURPUREA. Lvs. lanceolate, obtuse, yellowish-mealy beneath ; scape longer than 



the leaves ; invol. GO-flwd., as long as the pedicels ; lobes entire, dark-pnrple. Nepal. 



5 P. OFFICINAXJS. Cowslip P. Lvs. oblong, hairy beneath ; fls. all nodding ; cal. angu 



lar ; cor. concave. Endless varieties are raised from the seed. Europe. (P. veris.) 



6 P. ELATIOR. Ox-lip P. Lvs. hairy both sides; outer fls. nodding; cor. flat. Eur. If. Yel. 



7 P. AURICULA. Lvs. obovate, fleshy ; scape OO-ttowered, as long as the leaves ; bracts 



short ; calyx powdery. Alps. The varieties are innumerable and beautiful. 



8 P. CALYCINA. Leaves lanceolate, entire, acute, edged with white ; invol. 3-5-flwd., aa 



long as the pedicels ; cal. tube inflated ; corolla lobes emarginate. Austria. Purple. 



3. ANDROSACE, Tourn. Cal. 5-cleft or toothed. Cor. funnel-form 

 or salver-form, the 5 lobes entire, tube constricted at the throat, ovate 

 shorter than the calyx. Fil. and style very short. Caps, globous. Minute 

 caespitous herbs, with radical, rosulate leaves. (Scape bearing an umbel.) 



A. occideii tails Ph. Lvs. oblong-spatulate aud ovate, entire, glabrous ; scape oc- 

 flowered ; bracts oval, pedicels slender ; calyx angular, segments longer than the 

 small white corolla, (I) Gravelly shores, 111., and W. 13'. 



4. DODECATHEON, L. AMERICAN COWSLIP. PRIDE OF OHIO. 

 Cal. 5-parted, reflexed. Cor. tube veiy short, limb 5-parted, segm. reflexed. 

 S'a. 5, inserted into the throat of the corolla. Fil. very short. Anth. large, 

 acute, connivent at apex. Style exserted. Caps, oblong-ovoid, 5-valved, 

 oo - seeded, if Root fibrous, with radical, oblong leaves, an erect, simple 

 scape, and a terminal umbel of nodding white flowers and erect fruit. 



D. OTeadla L. Ohio, Penn. to Cal. ! common in prairies. Whole plant glabrous, 1 2f' 

 scape 9-20-flowercd, usually abon i '' flowered. Singularly elegant. May, June. 



