746 BORAGINACEAE, | Myosotis, 
spreading, 5-lobed; lobes contorted in the bud. Stamens 5, aflixed to 
the corolla-tube, included or exserted; anthers ovate or oblong. Ovary 
deeply 4-lobed ; style filiform. Nutlets 4, ovoid-oblong, smooth and shin- 
ing, attached by a small basal area. 
A well-known genus of over 50 species, found in the temperate regions of both 
hemispheres, and particularly well represented in New Zealand, from which over 30 
species are now known. One of the species extends to Australia, the rest are endemic. 
The great development of the genus in New Zealand, and the paucity of species in both 
Australia and South America, is one of the most remarkable features of the New Zealand 
Flora. 
I have followed the ‘“‘ Genera Plantarum ’’ and Engler and Prantl’s “ Pflanzen- - 
familien ”’ in reducing Hxarrhena to a section of Myosotis. Its distinguishing characters 
lie in the usually large campanulate corolla, the stamens inserted high up the corolla- 
tube between the scales, so that the anthers are altogether above the level of the scales 
and exserted beyond the tube, and in the filaments being usually (but not invariably) 
longer than the anthers. But M. albo-sericea and M, Goyeni have the corolla of 
Hxarrhena with the stamens of Myosotis, while the position of the stamens on the 
corolla-tube varies in both Myosotis and Exarrhena. 
The student must bear in mind that several species greatly resemble one another 
in habit and foliage, although widely different in the flowers. This is specially the case 
with M. Forsteri, a true Myosotis, and M. petiolata, an undoubted Exarrhena. 
M. capitata, M. explanata, M. concinna, and M. macrantha are all very near to one 
another in size, habit, and foliage, and all have unlike flowers. 
Section I (Kumyosotis). Stamens inserted on the corolla-tube ; filaments shorter than 
the anthers, which are included in the tube, their tips not exceeding the corolla-scales. 
* Flowers solitary, sessile, terminal, Leaves small, imbricate. 
Small, densely tufted, 2-6 in. diam. Leaves 4 in., linear-oblong 1. MW. uniflora, 
Small, densely tufted, 2-4in. diam. Leaves 4-1in., obovate- | 
spathulate Re hs me He hy! -- 2. M. pulvinaris. 
** Flowers solitary and axillary or near the axils. 
Stems many, sparingly branched, $—-14 in. long. Leaves obovate- 
oblong, 4-2 in. Flowers blue 
| a: a, PF 3. MM. antarctica. 
Prostrate or decumbent, leafy, 1-6 in. long. Leaves often dis- 
tichous. Flowers minute, ;4,-+ in. long, white a .. 4. M. pygmaea, 
Annual, sparingly and diffusely branched, almost flaccid. Cauline 
leaves remote. Flowers opposite the axils, +4 in. diam. .. 5 MM. tenericaulis. 
Small, densely tufted, 1-3 in. diam. Leaves crowded. Flowers 
few, } in. long, corolla-tube twice as long as the calyx -- 6. M. Cheesemanii. 
Prostrate or decumbent, leafy, 1-2in. long. Flowers rather 
large, {-3 in. long, Anthers long, narrow-linear ° .. .. % MM. decora, 
*** Flowers in terminal racemes without braets, or the lower flowers alone axillary. 
+ Racemes short, stout, capitate. 
Stout, erect, 4-8in. high. Radical leaves 11-4 in. Racemes 
forming a broad capitate head. Flowers + in. diam., blue; : 
anthers below the corolla-scales  .. eA +! »» 8 WM. capitata. 
Stout, erect or ascending, 8-18in. high. Radical leaves 3-6 in. 
long. Racemes forming broad capitate heads. Flowers 4+-} in., 
white ; anthers altogether above the corolla-scales Poke 
Stout, erect, 6-12in. high. Leaves submembranous, sparsely 
hispid. Racemes short, stout, capitate. Flowers 2 in. diam., 
white .. a3 = x hme ba -- 10, M. explanata, 
Short, stout, densely hispid, 2-Gin. Leaves linear-spathulate. 
Racemes short, capitate. Flowers 4-4 in. long, lemon-yellow. 
Filaments very short, the tip of the anthers just above the 
scales .. cas Bs <s +3 1 -. Ll. WM. Traversi. 
Size and habit of M. Traversii, but leaves narrower. Racemes 
capitate. Flowers 4in., white. Filaments as long as the 
anthers, which are wholly above the scales .. + -» 12. M. angustata. 
eo) 
. albida. 
