Oldenlandia.'] uuBiACEaE. 151 



connivent. — Hedyotis Jdspida, Eetz; DC. Prod. iv. 420. ScleromUrion his- 

 pidnm, Korth. in Ned. Kriiidk. Arch. ii. 155. 



Hongkong, Wright. Dispersed as a weed over India and the Archipelago. 



2. O. angustifolia, Bentli. A diffuse or decumbent herb, with the 

 habit of 0. hispida, but more slender, and glabrous or seldom very slightly 

 pubescent. Leaves almost sessile, linear, 1 to \\ in. long, 1 to 1 ^ lines 

 broad. Stipules short, with several bristle-like teeth. Flowers about 2 lines 

 long. Corolla slightly pubescent. Calyx and capsule as in 0. kispida, but 

 quite glabrous. — Hedi/oUs angiistlfoUa, Cham, and Schlecht. ; DC. Prod. iv. 

 419. Scleromitrioii angusti folium, Benth. in Kew Journ. Bot. iv. 172. Hedy- 

 otis approMmata, Wall. Catal. n. 852. Scleromitrion tetraquetrum, Miq. Fl. 

 Ned. Ind. ii. 186. 



Hongkong, Champion and others. Also in Khasia, Silhet, and Penang, and apparently a 

 common weed in the Indian Archipelago. 



3. O. herbacea, DC. Prod. iv. 425 {but without the LinncBan synonym 

 there quoted*). A much-branched, slender, diffuse annual, 6 in. to 1 foot 

 long, glabrous, or rough with a slight pubescence. Stipules with short 

 bristle-like teeth. Leaves linear or linear-lanceolate, usually ^ to 1 in. long, 

 and 1 to 2 lines broad, narrowed at the base. Peduncles axillary, usually 

 solitary, bearing either a single flower or a cyme of 2 or 3, and almost always 

 shorter than the leaves. Flowers sometimes scarc(;ly above 1 line long and 

 from that to near 2 lines. Calyx-teeth shoiier than its tube and about the 

 length of the short broad tube of the corolla, which is glabrous inside or nearly 

 so. Capsule small, usually globidar, sometimes ahnost ovoid, but not so 

 narrow as in 0. Heyneana, sometimes broader than long, but not didymous 

 as in 0. brachiata, Wight (0. dichotoma, Keen.), the minute calyx-teeth dis- 

 tinctly separated from each other in a ring round the apex. — Hedyotis (Olden- 

 landia) Burmanniana and H. (0.) intermedia, W. and Arn. Prod. i. 414, with 

 the synonyms there adduced ; H. extensa. Wall. Catal. n. 2869 ; ZT. alsincBfolia, 

 Wall. Catal. n. 873. 



Var. a. nniflora. Peduncles almost always 1-flowered, either very short {0. brachypoda, 

 DC. Prod. iv. 424), or more than half as long as the leaves ; the flowers usually from I^ to 

 2 lines long. 



Var. b. parviflora. Peduncles slender, mostly 2- to 3 -flowered, sometimes with 1 or with 

 4 or 5 flowers. Flowers scarcely above 1 line long, or even smaller. — 0. bijlora, Linn. Her- 



* The Hedyotis herbacea of Linneeus is not in his herbarium, but from his description 

 in the ' Flora Zeylanica,' especially the observation " Corolla infuudibuliformis, hinc ab 01 

 denlandlis diversa," it is evident that he had in view the U. Ileyneana, W. et Arn. Olden- 

 landia bijlora is represented by a very poor garden specimen of what appears to be the 

 several-flowered variety of the present species ; and of 0. corymbosa there is a satisfactory 

 specimen of the same variety; but neither of these names can well be made to include the 

 single-flowered form, which appears to have been unknown to Linnscus. "NVe have then to 

 choose for the name of the whole species between Oldenlandia herbacea, DC, Hedi/oiis 

 diffusa, Willd., and Hedyotis (Oldenlandia) Burmanniana, W. et Arn. I have preferred 

 the first, although derived from a mistaken adoption of Linuseus's specilic word, for it is the 

 oldest, in which neither the generic nor the specific term would have to be changed, besides 

 that it is generally adopted for the American specimens. There have been some doul)ts sug- 

 gested as to Willdenow's Hedyotis diffusa being really this j^laut, besides that his name was 

 never transferred to Oldenlandia till after the Prodromus, and ^Vight and Arnott's uame is 

 still more recent. 



