NOTES ON NEW OR RARE PLANTS. 243 



to two feet long; tliey are of a ricli deep blue colour. Like the 

 lovely, well-known E. pulchelluni, it is a winter blooming plant, and 

 liiglily ornamental. It flourishes best in the hothouse, but will do 

 well in a warm greenhouse or conservatory, and, like E. pulchellum, 

 ought to be grown in every one. They are great favourites of ours, 

 and which we frequently admire. (Figured in Pax. Mag. Bot.) 



EXOGONIUM PURGA ThE TRUE JaLAP PlAXT. 



Conuolviilacece. Fentandria Alonopi/iiia. (Syn. Ipomea purga.) 

 An inhabitant of the woods near Xalapa, in Mexico, wlience the 

 name, and the tuberous purgative roots, for medical purposes, are col- 

 lected. It has bloomed in tlie stove, at the Chiswick Garden. The 

 tube of the flower is about three inches long ; the size of a small wheat 

 straw ; tlie limb (surface of the flower) is flat, two inches across ; the 

 whole of a deep purplish-rose colour. (Figured in Bot. Reg., 49.) 



Gardenia longistyla — LoNG-STi'LED. 



Ruhiacece. Pentandria Monogynia. 

 Mr. Wliitfield discovered it in Western Africa, and it requires to be 

 grown in the hothouse in tlds country. It has bloomed in the col- 

 lection of Messrs. Lucombe, Pince, and Co., of Exeter. It is a 

 vigorous shrubby plant ; the flowers are terminal, and are borne in a 

 large cluster of twenty or more. Tlie tube of each flower is two inches 

 long, green. The limb consists of five spreading segments, about an 

 incli and a half across, greenish without and white witliin. It is a 

 handsome species, and the long style being twice the length of the 

 flower has a singular appearance. (Figured in Bol. 3Iug., 4322.) 



IxoBA Griffithii — Mr. Griffith's Ixora. 



RuiiacecE. Tetandria Monogynia. 

 Mr. Low, jun., introduced this fine species from Singapore, and it 

 lias been sold out under the name of I. hydrangeaeformis. Its present 

 name is commemorative of its first discoverer, Mr. Griffith. It is a 

 noble stove plant, the leaves being about a foot long. It requires tlie 

 same treatment as I. coccinea and otiiers. The flowers are produced 

 in a terminal broad head, nearly flat at the surface, and about five 

 inches across. Tiie blossoms are at first a rich orange yellow, but 

 afterwards change to a fine red orange. A specimen, in bloom, was 

 exhibited at tlie sliow in the Regent's Park Garden last July, by 

 Messrs. Lucombe, Pince, and Co. Witli us it grows very rapidly, 

 and it appears to be easy of culture. It ought to be in every stove 

 collection. (Figured in Bot. Mag., 4325.) 



LlSIANTHUS ACt'TANGULUS — SuARP-ANGLED, 

 Gcnlianea. Pentandria Monogynia. 

 From Soutli America. It has recently bloomed in the Royal 

 Gardens of Kew. It was forwarded in the hothouse, and when in 

 bloom was kept in the greenhouse. It grows to the height of two to 

 three feet. The flowers are produced in racemes, in a loose branchiu"- 

 panicle; fiiey are be!l-formed, an inch long, green. It is a biennial 

 plant. (Figured in But. Mag., 4324 ) 



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