2802 



PRIMULA 



PRIMULA 



an often obscure petiole, obtuse or rather acute, 

 obsoletely and sparingly denticulate or subentire, 

 rarely sharply denticulate: scape exceeding the Ivs. or 

 (in alpine forms) more or less equaling them, 1%-1Q 

 in. high, bearing a densely fld. subsessile head: bracts 

 oblong-lanceolate, obtuse base produced below the 

 place of insertion: fls. rose; calyx split one-third to one- 

 half its length, with ovate, obtuse lobes which become 

 black; corolla-limb less than %in. across, with short 

 obcordate lobes: caps, globose, about as long as the 

 calyx. Persia and Afghanistan. G. 31:49. 



AA. Fls. distinctly pedicellate (pedicels short in No. 189). 



B. Lvs. distinctly petiolate, the blade usually gradually 



contracted at base, the petiole not winged. 



c. Lf. -margin entire. 



131. involucrata, Wall. (P. Munrbi, Lindl. P. 

 Trdillii, Wilson). Fig. 3189. Not farinose: Ivs. leathery, 

 becoming somewhat 



glaucous, ovate, ob- 

 long, or deltoid-orbic- 

 ular, obtuse, very 

 entire or obsoletely and 

 minutely denticulate, 

 suddenly contracted to 

 a petiole which exceeds 

 the blade: scape much 

 exceeding the Ivs., 4-12 

 in. high, slender, bear- 

 ing a 3-6- to many-fid, 

 umbel: bracts linear, 

 their base spurred with 

 appendages: fls. white; 

 calyx glabrous, tubu- 

 lar, 5-ribbed, with nar- 

 rowly triangular sub- 

 acute lobes; corolla- 

 throat annulate, yel- 

 lowish, the limb about 

 %in. across, lobes ob- 

 cordate. Himalaya. 

 F.S. 10: 1023. Gt. 1863: 

 394. G.C. III. 22:263 

 (reduced in Fig. 3189). 

 Gn. 79; p. 197. R.H.S. 

 39:209. Needs a 

 moist position. 



132. sibirica, Jacq. Plant wholly green: Ivs. pale 

 green, membranaceous, glabrous, elliptic-orbiculate or 

 ovate, very entire or rarely with a tendency to be 

 denticulate, suddenly contracted to a petiole which 

 almost equals the blade: scape exceeding the Ivs., 2-7 

 in. high, slender, bearing a lax, few-fld. umbel: bracts 

 oblong, obtuse, their base appendaged-saccate: fls. 

 lilac or pink; calyx glabrous, tubular, 5-ribbed, with 

 short, rather obtuse lobes; corolla-throat naked, the 

 limb about J^in. across or less, with obcordate deeply 

 emarginate lobes: caps, cylindrical, exserted from the 

 calyx. 



Var. integrifdlia, Pax (P. integrifolia, GEder. P. 

 sibirica var. kashmiridna, Hook, f.), has fls. mostly 

 smaller, the corolla-tube scarcely exceeding the calyx, 

 and the corolla-lobes narrower. B.M. 6493. Var. 

 brevicalyx, Trautv., has corolla-tube twice or more 

 longer than calyx. Arctic and alpine regions of the 

 northern hemisphere. B.M. 3167 (as P. sibirica); 3445 

 (as var. integerrima). G.C. III. 41:350 ("the small 

 variety"). Gn. 78, p. 412. G. 37:247. G.M. 56:963. 



133. conspersa, Hort. Veitch. Allied to P. sibirica: 

 Ivs. finely but variably serrate, about \Yi in. long and 

 }^in. broad, erect, firm in texture, not farinose, fls. 

 rather more rosy: scape about 9 in. high, farinose, bear- 

 ing an umbel about 12-fld.: fls. about %in. across, pale 

 lilac: later than P. farinosa and with taller scapes and 

 larger fls. W. Kansu, China. 



3189. Primula involucrata. 



134. tibetica, Watt (P. pumilio, Pax). Not farinose, 

 dwarf: Ivs. leathery, glabrous, elliptical, acute or obtuse, 

 very entire, contracted to a petiole which almost equals 

 the blade: scape very short, %in. (frequently less) high, 

 bearing 1-5 fls. : bracts linear-oblong, their base hardly 

 gibbous: fls. rose or blue; calyx tubular, 5-angled, with 

 short-triangular obtuse lobes; corolla-throat annulate, 

 the limb hardly %in. across, with deeply obcordate 

 lobes: caps, long-exserted, cylindrical. High mountains 

 of Thibet. 



cc. Lf. -margin more or less denticulate. 

 D. Involucral bracts scarcely gibbous at base. 



135. Knuthiana, Pax. Farinose, not hairy: Ivs. 

 membranaceous, oblong-ovate or lanceolate, acute or 

 obtuse, narrowed to a winged petiole which is distin- 

 guishable from the blade or scarcely so and is equal to 

 or shorter than the blade, densely farinose below, 

 denticulate: scape equaling or exceeding the Ivs., 

 4-5K in- high bearing a many-fid, lax umbel: bracts 

 broad subulate-acuminate from the base which is 

 scarcely gibbous: fls. violet; calyx open-campanulate, 

 split to the middle with triangular acute lobes; corolla- 

 throat constricted, the limb about 3^in. across, with 

 pbcordate deeply emarginate lobes: caps, globose, 

 included in the calyx. China, in two or more forms. 

 G.C. III. 51: suppl. May 25. G.M. 55:254. F.E. 

 33:975. R.H.S. 39:160. 



136. fronddsa, Janka. Farinose or entirely devoid of 

 farina, not hairy: Ivs. very thin-submembranaceous, the 

 inner ones finally becoming elongated, cuneate-oblong 

 or when obovate, obtuse, gradually narrowed to a petiole 

 which equals or exceeds the blade, sharply denticulate 

 or when mature wavy-crenulate, a little undulate : scape 

 exceeding the Ivs., 1^-4 in. high, bearing a many-fid. 

 lax umbel: bracts small, linear-lanceolate, their base not 

 saccate: fls. bright blue; calyx tubular-campanula te, 

 with triangular acute lobes; corolla-limb almost ^in. 

 across, with obcordate, bifid-emarginate lobes: caps, 

 cylindrical, equaling or half longer than the calyx. 

 Balkans. Gn. 71, p. 323; 72, p. 167; 76, p. 194. Gn.W. 

 25:529. G. 36:534. R.H.S. 39:97. It has been 

 stated that the plant in cult, under this name is not the 

 plant of Janka, but this is probably an error (see Roy. 

 Hort, Soc. 39, pp. 103, 178). 



DD. Involucral bracts somewhat saccate at base. 



137. efarinosa, Pax. Not farinose, very glabrous: 

 Ivs. membranaceous, 1 ^ in. (more or less) long, oblong- 

 ovate, obtuse, sharply erose-denticulate, narrowed into 

 a winged petiole which equals or is shorter than the 

 blade: scape exceeding the Ivs., 5-7 in. high, bearing a 

 lax, many-fid, umbel: bracts acuminate from a saccate 

 base: fls. violet; calyx tubular-campanulate, not split to 

 middle with shortly triangular, subobtuse lobes; 

 corolla-tube not constricted at the throat, the limb 

 about Hin. across, with narrowly obovate, deeply 

 emarginate-bifid lobes: caps, globose, included in the 

 calyx. Cent, China. 



138. darialica, Rupr. Plant farinose or not so, gla- 

 brous: Ivs. %-2J4 in. long, soft, obovate-lanceolate, 

 oblong or spatulate, obtuse, sharp-denticulate or ser- 

 rate, suddenly cuneate-attenuate to a petiole which is 

 longer or shorter than the blade: scape equaling or 

 exceeding the Ivs., bearing a few- or many-fld. umbel: 

 bracts linear, their base somewhat saccate: fls. rose; 

 calyx subglobose, split to the middle, with oblong, 

 subacute, greenish lobes; corolla-limb less than J/^in. 

 across, with obcordate, bifid lobes: caps, exceeding the 

 calyx. Caucasus region. R.H.S. 39:176. 



139. elliptica, Royle. Not farinose: Ivs. small 

 (J^-Min. diam.), membranaceous, glabrous, glaucous 

 beneath, orbicular to elliptic, obtuse, strongly dentate, 

 petioled, with base dilate and vaginate : scape exceeding 

 Ivs., 4-5 in tall, somewhat flexuose, bearing a 3-10- 



