854 MINNESOTA BOTANICAL STUDIES. 



Sida fiillax Walp. Nov. Act. Nat. Cur. 10: Suppl. 1, 306. 

 1843. 

 A species which is common on the lee side of Oahu, espe- 

 cially about Diamond Head, where it was collected by the 

 botanists of the U. S. Exploring Expedition. In none of the 

 descriptions of Sida, so far as I have observed, is there refer- 

 ence to the unequal sided petals which is so characteristic of 

 the Hawaiian plants. They are erosely notched, the sinus be- 

 ing quite broad. The flowers are often over an inch in diam- 

 eter, orange yellow. The leaf forms are variable, though gen- 

 erally broadly ovate, and the end either pointed or rounded. 

 The canescent pubescence is variable too, but always present, 

 usually decidedly so. 



Sida meyeniana Walp. Nov. Act. Nat. Cur. 10: Suppl. 1, 307. 

 1843. 



Plants referable to this species were noticed at various places 

 in Hanapepe valley, Kauai (2717). It is a slender bush, six to 

 eight feet high, with large, orange-colored flowers, and light 

 green leaves. The leaves are broadly ovate, rather large, un- 

 equally serrate, grayish underneath with very short, stellate 

 hairs. The calyx lobes are ovate, acute, marked for half their 

 length by a broad white rib, and are somewhat pubescent on 

 the outside, with the inside of the tips wooly. The young 

 stems, petioles, and pedicels, are covered with bunches of stel- 

 late hairs. 



Another very different form, or rather two forms, is No. 

 2197. The first one was collected at the Nuuanu Pali, Oahu. 

 It is a low, prostrate, much branched shrub, with small, 

 broadly ovate or almost orbicular leaves, which are bright 

 green on both sides, and only the younger ones pubescent. 

 Later, specimens were collected in Waialae valley, and includ- 

 ed under this number. These specimens were from an erect, 

 branching bush, four or five feet high. The leaves are also 

 bright green on both sides, broadly lanceolate, with a base 

 somewhat cuneate. None of these specimens agree very well 

 with either Gray or Hillebrand's descriptions of Sida meyeni- 

 ana, nor does there seem to be any other described Hawaiian 

 species to which they can be referred. 



