152 PHANEROGAMIA. 



Malvastra Phyllanthophora) * The character has been noticed by 

 Meyen in two species from the southern part of Peru ; but it seems 

 to have escaped observation in the most conspicuous of all, namely 



* Besides those in the collection of the Exploring Expedition, above enumerated, the 

 following species belong to this section : — 



Malvastrum Phyllanthos. Sida Phyllanthos, Cav. Diss. 5, p. 276, t. 127, f. 4; 

 H. B. K. Nov. Gen. & Spec. 5, p. 264. — The hirsute carpels are pointed with a subu- 

 late beak, which is shorter than the cell. The radicle, although rather abruptly inflexed, 

 is centripetal-inferior. — Sida Borussica of Meyen, is either a variety of this species, as 

 Walpers suggests, or a closely allied species. 



M. Pichinchense. Sida Pichinchensis, Humb. & Bonpl. PI. JEq. 2, p. 115, t. 116. 

 — The ripe fruit (in specimens collected by Hartweg) consists of about 12 two-valved 

 carpels, which are hirsute, membranaceous, tapering into an erect, lanceolate-subulate, 

 and soon bifid beak, which is longer than the cell. Embryo rather closely coiled, but 

 not conduplicate; the radicle centripetal-inferior. The character of the leaves is cor- 

 rectly indicated by Bentham (in Plantse Hartwegianae). The flower is borne on the 

 winged part of the petiole between the stipules, just as in the preceding species. 



Malvastrum Macleani (Sp. Nov.) : nanum, multiceps e caudice brevissimo crasso, 

 acaule; foliis confertis biternatilohatis seu tripartitis segmentis 2-3-jidis, Mis obovatis 

 oblongisve obtusis supra (cum. calyce) albo-vilhsis subtus villosvlis ; flore in petiolo in/erne 

 stipulis adnatis alato sessili wia^mo.— High Andes of Peru, Mr. M'Lean (in herb. 

 Hook.). — The plant is only about an inch high, exclusive of the flower: the leaves form- 

 ing a dense tuft on the thickened caudex. Petioles 2 to 4 lines long, flattened below, 

 and with the stipules adnate to the middle, naked. The leaves themselves are villous 

 with long and soft white hairs, more densely so on the upper surface, 3 or 4 lines long 

 and 5 or 6 in width, somewhat reniform in circumscription, three-parted, or sometimes 

 flabellately 4-5-parted, and with the divisions deeply 2-3-cleft or parted, obovate or 

 cuneiform, much crowded; the segments either entire or again 2-3-lobed; the ultimate 

 lobes narrowly oblong, or obovate. obtuse. The flower is very large for the size of the 

 plant; the petals (apparently pale purple) being an inch and a quarter in length. Calyx 

 villous, like the leaves. Stamens, styles, &c, as in the genus. Fruit not seen. 



Malvastrum pediculari^efoltum. Sida pediculariafolia, Meyen, Reise, 1, p. 

 460, ex Walp. Rel. Meyen. p. 308.— A species evidently related to the foregoing, 'but 

 unknown to me. 



Malvastrum compactum. Sida compacta, Gay, Fl. Chil. 1, p. 329, is a well- 

 marked Phyllanthophorous species. 



Malvastrum anthemidifolium. Sida anthemidifolia, Reiny, in Ann. Sci. Nat. 

 ser. 3, 6, p. 356. 



There are other undescribed Chilian and Peruvian species in the Hookerian herbarium. 



