SPICILEGL^ FLOR.E SINENSIS. 231 



* Genera' keeps Lettsomia apaiii fi-om Argyreia, it must be admitted 

 that these groups have no better claim to be distinguished than 

 Pharhitis and Batatas have to be separated from Ipomoea. Dr. 

 Wight was quite logical in re-establishing L^-Wio^/fm, because, unhke 

 Mr. Bentham, he regarded a difference in the number of cells of 

 the ovary and the ovules in each as sufficient grounds for the main- 

 tenance of a genus ; but he also supposed that Maripa, Legeiidrea, 

 Blinka-orthia and Humhertia would be absorbed by it. And the 

 habit of Arriyreia and Lettsomia is so entii-ely the same that I think 

 it would be far better to combine them. 



38. Heuittia hicolor, Wt. & Arn. In ins. Hai-nan, juxta Hoi- 

 hau, aest. 1877, coll. Bullock. Not to my knowledge j)reviously 

 gathered in China. 



39. Celsia coromandeliana, Vahl. Ad strata limosa a fluvio 

 West Eiver anno praeterito deposita, j)rope fauces Shiu-hing, 

 prov. Cantonensis, d. 7 Febr., 1867, coll. Sampson. I am not 

 aware of this s^Decies having been hitherto found on the Asiatic 

 continent eastward of Birma. 



40. Limyiophila heteroplnjlla, Benth. In stagno juxta pagum 

 Pui-shui, secus fl. West Eiver, in-ov. Cantonensis, 80 m. p. ab urbe, 

 d. 9 Julii, 1870, coll. Sampson. The remaining species known 

 from China have been enumerated bv Maximowicz (' Mel. Biol. 

 Acad. St. Petersb.,' ix., 406.) 



41. Torenia jjarviflora, URm. In multis locis Chinae austrahs. 

 Corolla yellow, at anthesis not exceeding the calyx-teeth. 



42. Torenia f1ava,'H.Sim. Cum priori. Corolla deep yeUow (not 

 imle, as stated in the 'Prodi-omus '), with a purple blotch on each 

 side, at anthesis exceeding the cah^L-teeth by fully a thu'd. 



43. T. cordifolia, Koxb. Cum praecedentibus. Very like the 

 last, but the corolla is white, with a purplish-blue spot on either 

 side, its tube more exserted, throat less ampliate, and the cah^x is 

 straight not inciuwed, and very conspicuously winged, and the 

 fohage is nearly that of T. parviflora. The inflorescence, on which 

 subsections are founded in the 'Prodromus,' affords a very in- 

 constant and untrustworthy character. 



44. Vandellia hirsuta, Ham. Ad ripas fl. West Eiver, prov. 

 Cantonensis, d. 21 Julii, 1872, legg. Sampson et Hance. 



45. Strohilanthes scaler, N. ab E. Prope Cantonem, coll. F. 

 Parry ; in montibus Pak-wan, supra urbem, Dec. -Jan., 1867-8, leg. 

 Sampson; in ins. Danorum, Whampoae, Dec, 1868, detexit Alius 

 mens x^lfredus. 



I find, with Mr. Bentham, in the capsules I have opened either 

 five or six seeds, one cell usually containing three, the other two ; 

 but there are three retmacula in each. 



46. Hijptis suaveolens, Poit. Prope Kieng-chaii, metropolin ins. 

 Hai-nan, ad vias satis copiose, legi d. 17 Nov., 1866 : cu'ca Macao, 

 passim in arenosis ad more pluries inveni. 



47. Dijsophylla? tetraphi/Ua, Wt. In ins. Hai-nan, cii-ca Hoi- 

 hau, a. 1877, invenit Bullock. The spike in ray specimen is not 

 yet fully developed, but the plant agrees veiy well with Wight's 

 character. The stem and leaves are clothed with dense appressed 



