ONAGRARI^E. IX. CLAKKIA. X. JUSSIJEA. 



G91 



FIG. 



2918. Lindl. hot. reg. 1100. 

 Flowers large, of a beautiful rose- 

 purplish colour, rarely white. 



Var. /3 ; petals less deeply 

 lobcd, but more denticulated. 

 Hook. bot. mag. t. 2918. 



Neat Clarkia. Fl. June, Aug. 

 Clt. 1826. PI. l|foot. 



2 C. RHOMBOI'DEA (Dougl. 

 mss. ex Hook. fl. bor. amer. p. 

 214.) petals entire, rhomboid; 

 leaves lanceolate. 0. H. Na- 

 tive along with the preceding 

 species. Flowers of a beautiful 

 rose-purple colour. 



Rhomboid- petalled Clarkia. 

 Fl. June, Aug. PI. 1 foot. 



Cult. The C. pulchella is one of the most showy border 

 annuals ever introduced to the gardens, and is on that account 

 to be seen in every flower-garden and nursery, although but a 

 few years since its first introduction. Both species will grow in 

 any common garden soil, in which the seeds may be sown. 



Tribe IV. 



JUSSIE'^E (plants agreeing in character with the genus Jus- 

 sice*a). D. C. prod. 3. p. 52. Fruit capsular ; cells many- 

 seeded. Tube of calyx permanent, not drawn out beyond the 

 ovarium, but dividing immediately into segments (f. 98. a.). 

 Usually herbs, rarely shrubs. 



X. JUSSI^i'A (so named by Linnaeus, in memory of Antoine 

 de Jussieu, Demonstrator of Plants in the Royal Garden at 

 Paris, uncle of the celebrated Antoine Laurent de Jussieu). Lin. 

 gen. no. .538. Gsertn. fruct. 1. p. 154. t. 31. Lam. ill. t. 28. 

 D.C. prod. 3. p. 52. Jussieiia, Pers. ench. no. 1069. 



LIN. SYST. Octo-Dec6ndria, Monogynia. Tube of calyx 

 prismatic or cylindrical, adhering in its whole length to the ova- 

 rium ; limb 4 (f. 98. a.) -5-6-parted ; the lobes acute and perma- 

 nent, valvate in {estivation. Petals spreading, equal in number to 

 the lobes of the calyx (f. 98. rf.). Stamens double the number of the 

 petals, deciduous like them. Ovarium sometimes flatfish at the 

 apex, sometimes elevated into a furrowed cone (f. 98. b.). Style 

 filiform, short, crowned by a capitate 4-6-furrowed stigma. 

 Capsule 4-6-celled, oblong, usually ribbed and opening between 

 the ribs, always crowned by the calyx. Seeds numerous, naked. 

 Herbs, rarely shrubs, natives of marshes. Leaves alternate, 

 for the most part quite entire. Flowers axillary, solitary, ses- 

 sile, or on very short petioles, usually bibracteate at the base, 

 generally yellow, rarely white. 



* Flowers with 5 petals and 10 anthers, very rarely with 6 

 petals and 12 anthers. 



1 J. PERUVIA'NA (Lin. spec. 555.) stem suffruticose, erect ; 

 leaves oblong, attenuated at both ends, pubescent beneath ; pe- 

 dicel bearing 2 foliaceous bracteoles at the apex, twice the length 

 of the tube of the calyx, which is pentagonal and turbinate ; 

 calycine lobes 5, lanceolate, one half shorter than the petals, 

 which are roundly obovate. *? . B. S. Native of Peru, near 

 rivulets about Lima. Feull. obs. 2. p. 716. t. 9. Flowers 

 large, yellow. An emollient poultice is formed of the leaves of 

 this plant in Peru. 



Peruvian Jussiaea. Shrub 1 to 2 feet. 



2 J. VARIA'BILIS (Meyer, prim, esseq. 174.) stem shrubby, 

 ascending, glabrous ; leaves lanceolate, acuminated at both ends, 

 crenate-serrated, glabrous ; flowers on short pedicels, bibrac- 

 teolate at the base ; tube of calyx angular ; calycine lobes 5-6, 

 lanceolate, shorter than the petals, which are ovate. $ . B. S. 



Native of Guiana, about Essequibo, in marshes. Flowers yel- 

 low. This species is said to be nearly related to J. Peruviana, 

 but the leaves are narrower and the flowers are on shorter pe- 

 dicels. 



Variable Jussiaaa. Fl. Aug. Sept. Clt. 1826. PI. 1 to 2 ft. 



3 J. DODECA'NDRA (D. C. prod. 3. p. 53.) herbaceous, erect, 

 glabrous ; leaves oval, acute at both ends, on short petioles ; 

 flowers sessile ; tube of calyx elongated, cylindrical ; calycine 

 lobes 5-6, linear-oblong, acuminated ; petals ovate, emarginate, 

 equal in length to the calycine lobes. O- B. S. Native about 

 Demerara. Stem terete, below ; branches compressed, angular. 

 Flowers yellow. 



Dodecandrous Jussisea. PI. 1 foot. 



4 J. LEPTOCA'RPA (Nutt. gen. amer. 1. p. 279.) herbaceous, 

 erect, smoothish ; stem and calyx partly hairy ; leaves lanceo- 

 late, smoothish, attenuated at both ends ; flowers sessile, 5-6- 

 petalled ; tube of calyx very slender, cylindrical ; petals hardly 

 longer than the calycine lobes. O- B. H. Native of North 

 America, on the banks of the Mississippi and Missouri ; very 

 plentiful. Stem usually simple, irregularly angled. Petals 

 yellow. 



Slender-fruited Jussisea. Fl. Jul. Sept. Clt. 1817. PI. 1 ft. 



5 J. PILOSA (H. B. et Kunth, nov. gen. amer. 6. p. 101. t. 

 532. a and b.) herbaceous, erect, hispid; leaves oblong-lanceo- 

 late, narrowed at the base, hairy on both surfaces ; flowers on 

 very short pedicels, bractless ; tube of calyx cylindrical, elon- 

 gated ; calycine lobes 5-6, rarely 4, oblong-lanceolate, acumin- 

 ated ; petals roundly obovate, shorter than the calycine lobes. 

 Tf. . B. S. Native of the Caraccas, on the banks of the river 

 Apures, near St. Fernando. Flowers yellow. Nearly allied to 

 J. villosa. 



Pilose Jussiaea. PI. 1 foot. 



6 J. AFFI'NIS (D. C. prod. 3. p. 53.) herbaceous, erect, pilose ; 

 leaves oblong-lanceolate, acuminated at both ends, smoothish, 

 ciliated on the nerve and margins ; flowers on very short pedi- 

 cels, bractless ; calyx pilose, with a cylindrical elongated tube, 

 and 5 linear-lanceolate acuminated lobes ; petals oblong-obo- 

 vate, equal in length to the calycine lobes. 0. B. S. Native 

 of Guiana, about Demerara. Flowers yellow. Nearly allied 

 to J. pilosfi. 



Allied Jussiaea. PI. 1 foot. 



7 J. GRANDIFLORA (Michx. fl. bor. amer. 1. p. 267.) plant 

 floating ; stems herbaceous, villous ; leaves pubescent, oblong- 

 lanceolate, lower ones rather spatulate, the rest tapering to both 

 ends ; pedicels bractless, and are as well as the calyxes villous ; 

 flowers drooping before expansion; calycine lobes 5, acute; 

 petals obovate, emarginate, twice the length of the calycine seg- 

 ments. I/ . W. H. Native of Georgia and Lower Carolina, in 

 ponds. Sims, bot. mag. 2122. Flowers large, yellow. 



Great-flowered Jussiasa. Fl. Jul. Oct. Clt. 1812. PI. fl. 



8 J. MONTEVIDE'NSIS (Spreng. syst. 2. p. 232.) stem ascend- 

 ing, smooth at the base, but hairy above ; lower leaves spatulate, 

 glabrous, upper ones lanceolate, acute, quite entire, and hairy ; 

 calyx with a narrow tube and 5 lanceolate acute lobes ; petals 

 5, obovate, emarginate. "$.. W. S. Native of Brazil, in marshes 

 and rivulets in the province of Cisplatine, near the town of 

 Monte-Video. J. grandiflora, St. Hil. fl. bras. 2. p. 265. Pe- 

 dicels bibracteolate. Flowers yellow. 



Var. ft; flowers 3-times smaller than those of the species ; 

 leaves smoothish above, but with a few scattered hairs beneath. 

 St. Hil. 1. c. 



Monte-Video Jussiaea. PI. floating. 



9 J. DIFFU'SA (Forsk. descr. p. 210.) stems creeping ; leaves 

 lanceolate ; flowers sessile, 5-petalled, decandrous. If. . W. S. 

 Native of Egypt, in the Delta at the Nile, on the edges of fields. 

 This plant is hardly known, but evidently distinct from J. erecta, 



4 T 2 



