236 



MALVACEAE. 



1. Sida rhombifolia L. Ehombic-leaved 

 SlDA. (Fig. 260.) Annual, puberulent to gla- 

 brate. Stems erect, li-"-^-!" tall, branching; 

 leaves rhombic, elliptic-obovate or oblanceolate, 

 V-SV long, acute or obtuse, serrate except near 

 the base, pubescent with pale hairs beneath; 

 petioles l^"-'^" long; peduncles, at least those 

 arising from the stem, much longer than the 

 petioles, mostly V-'^V long; calyx puberulent, 

 its tube finally 5— 10-ribbed, its lobes triangular, 

 acuminate, about as long as the tube; petals 

 pale yellow, 3"-4" long, sometimes blotched 

 with red at the base; carpels 10 or 12, subulate- 

 beaked. 



Cultivated land between Harrington Sound 

 and Castle Harbor. Introduced. Native of the 

 southern United States and tropical America. 

 Flowers from spring to autumn. 



2. Sida carpinifolia L. f. Hornbeam -leaved 

 Sida. Wire-weed. (Fig. 261.) Puberulent or 

 glabrous. Stems erect, l^-S" tall, branching; 

 leaves lanceolate, oblong-ovate or ovate, l'-4' long, 

 acute or acuminate, irregularly serrate, obtuse or 

 subcordate at the base, the petioles lA"-4" long; 

 stipules conspicuous, narrowly linear to lanceolate, 

 surpassing the petioles; peduncles mostly shorter 

 than the pedicels, V-2>V long; calyx 5-10-ribbed, 

 its lobes triangular, slightly acuminate, about as 

 long as the tube; petals yellow to white, 3"-6" 

 long; carpels reticulate-wrinkled, 2-beaked. {Sida 

 spinosa of Millspaugh; S. antillensis Urban.] 



Common in waste and cultivated ground. Intro- 

 duced. Native of the southern United States and 

 tropical America. Flowers from spring to autumn. 

 Lefroy remarks that this weed is mentioned in Ber- 

 muda laws as early as 1669. Both broad-leaved and 

 narrow-leaved races are found. 



6. PAVONIA Cav. 



Shrubs or shrubby herbs. Leaves alternate, stipulate, angled or lobed. 

 Flowers perfect, commonly solitary on axillary peduncles. Involucel of 5-15 

 bractlets. Sepals 5, partially united. Petals 5. Carpels 5, 1-celled. Styles 10. 

 Stigmas 10, capitate. Ovules solitary. Mature carpels separating from the axis, 

 1-3-beaked on the back or beakless, more or less deeply 2-valved. Seeds soli- 

 tary, ascending. [In honor of Joseph Pavon, Spanish botanist and explorer.] 

 Sixty species or more, mostly of tropical distribution, the following typical. 



