Oldenlandia.] Lxxv. mubncum. (J. D. Hooker.) 65 
as broad as in narrow-leaved forms of H. pumila; stipules small, membranous, ir- 
regularly-eut, with a long and several shorter teeth or bristles. Peduncles rarely in 
pairs or 4- or more-flowered, or reduced and very short as in O. brachypoda. Capsule 
usually broad, didymous, sometimes hemispherie or narrowed below the calyx-teeth, 
base acute or rounded, crown usually not rising above the base of the calyx-teeth, at 
others hemispheric and approaching that of O. Heynii.—The various forms of this 
plant are distinguished by botanists as species; but these run so much into one 
another, that it is impossible to correlate their descriptions exactly with the specimens 
in Wallich’s and Wight's herbaria. O. scabrida is a very scabrid form; O. alsini- 
olia a glabrous, broad membranous leaved one, like a short-capsuled O. pumila; 
its tissues are sometimes full of cystoliths, in specimens from Penang, S. India, and 
N.W. India. I have followed Mr. Hiern in adopting Linneus’ name of corymbosa ; it 
is certainly the plant so named in the Linnean Herbarium, though whether it is that 
of the “ Species Plantarum” is doubtful, in my opinion. 
2. O. diffusa, Roxb. Hort. Beng. 11; Fl. Ind. i. 423; annual, diffuse, 
glabrous, leaves linear nerveless, margins usually recurved, flowers solitary 
sessile or shortly peduncled, calyx-teeth subulate rather shorter than the corolla- 
tube, capsule didymous, crown low. DC. Prodr. iv. 496. O. brachy poda, 
DC. l. c. 424; Wall. Cat. 864. Hedyotis ramosissima, Kurz in Journ. Às. Soc. 
1877, ii. 133. H. diffusa, Willd. Sp. PI. i. 566. 
An abundant weed throughout Innra, from Rohilkund to Ceylon and Malacca,— 
Disrris. Tropical Asia to Borneo, the Philippines, and Japan. 
I keep this distinct from O. corymbosa on the ground of its being a generally 
recognised form, more constantly diffuse, always glabrous, with shorter stouter 
peduncles or pedicels and larger capsules. It is, however, united by many aberrant 
specimens with that plant. ; 
Var.? extensa; more robust, stems as thick as a crow-quill shining 2 ft. long, - 
leaves often 2} by } in. peduncles longer 1—2-fld., capsule iin. diam. Hedyotis . 
extensa, Br. in Wall. Cat. 869.—Silhet, Wallich, Griffith (Kew Distrib. 2910). y 
Var? polygonoides; perennial-rooted, leaves very small }—} in. narrow. Hedyotis 
polygonoides, Wall. Cat. 872.—Birma, Wallich. 
3. O. Heynii, Dr. in Wall. Cat. 867, partly (Hedyotis); annual or 
biennial, glabrous, erect, much branched, leaves linear- or linear-lanceolate 
nerveless, margins usually recurved, peduncles solitary capillary 1-flowered, calyx- 
teeth subulate much shorter than the slender corolla-tube, capsules didymous 
globose or ovoid, crown much protruded. O. herbacea, Willd.; Roxb. Fl. Ind. 
424 (P of Linneus). PO. linearis, linifolia, and asperula, DC. Prodr. iv. 425. 
Hedyotis Heen, JV. $ A. Prodr. 416; Dalz. & Gibs. Bomb. Fl. 116.—Rheede 
Hort. I" x. t. 23. 
Mowntainous part of Inpa from Kumaon, alt. 5500 ft., to the Khasia Mts., alt. 
4000 TL and southward to Ceylon; not found in the Malay Peninsula or the Eastern 
Himalaya.— Distr. Malay Islands, Tropical Africa. 
Usually a taller stricter much more robust plant than O. corymbosa, with a longer 
more ovoid capsule, having a much protruded crown and usually 1-flowered solitary or 
2-nate filiform peduncle equalling the leaves; but these characters are far from con- 
stant, and in some examples the flowers are panicled towards the ends of the branches 
as in thé next subsection. The name Heynii may have to give place to some of the 
synonyms cited, if ever these are cleared up. 
4. O. crystallina, Roxb. Hort. Beng. 11; Fl. Ind. i. 422; annual, 
Sone, branches low diffuse leafy, leaves elliptic- or elliptic-lanceolate sub- 
acute flat, peduncles solitary 1—2-fld. filiform equalling the leaves, calyx-teeth 
triangular-lanceolate, bases touching in fruit, a little shorter than the corolla- 
tube, capsule obovoid, crown low. DC. Prodr. iv. 426. O. pumila, DC. l. c. 
425, edyotis pumila, Linn. f.; Wall. Cat. 6200, chiefly; W. & A. Prodr. 414, 
F 
T III, 
| 
| 
| 
