64 A FLORA OF MANILA 



2. 8. myosuroides (Kaulf.) Spring. 



A slender, erect or ascending annual, 6 to 16 cm high, copiously 

 pinnate, the branches compound, the base of the stem with rootlets. 

 Leaves of the lower plane spaced, membranaceous, oblong-lanceolate, acute, 

 about 8 mm long, slightly inequilateral, light-green, those of the upper 

 plane 2 mm long or less, lanceolate, acuminate, appressed. Spikes 1 cm 

 long or less, about 3 mm thick, the bracts of the upper plane closely 

 imbricated, oblique, lanceolate, as long as and in the same plane as the 

 larger leaves. 



On damp banks, shaded ravines, etc., Guadalupe to San Juan del Monte 

 and Masambong, Aug.-Feb.; widely distributed in the Philippines. Endemic. 



3. S. barbata Spring. 



An erect or suberect, somewhat tufted, branched annual from the slightly 

 prostrate base, 6 to 16 cm high, with rootlets at the base only, pinnate, 

 the branches ascending, rather close, the branchlets numerous. Leaves 

 of the lower plane spaced on the stem, close on the branches, ovate, acute, 

 ascending, about 2 mm long, subequilateral, the base broadly rounded and 

 somewhat ciliate on the margins, imbricated on the upper side over the 

 stem, the leaves of the upper plane about one-half as large, obliquely 

 ovate, acute, appressed. Spikes about 5 mm long, 1.5 mm thick, the 

 bracts ovate, acuminate, keeled on the back. 



On damp cliffs, banks of streams, etc., Masambong to San Pedro Macati, 

 Aug.-Oct.; of local occurrence in Luzon. Endemic. 



A few forms of uncertain origin are found in cultivation, but these have 

 not been considered here. 



SPERMATOPHYTA. PLANTS PRODUCING FLOWERS 



AND Seeds 



Class I. GYMNOStEBJttAE: Ovules naked, not borne in closed ovaries, the 

 stigma none. 



7. CYC ADAGE AE (Cycas or Pitogo Family) 



stout erect shrubs or trees with simple, rarely forked stems, with 

 numerous, long, pinnate leaves crowded at the ends. Leaflets numerous, 

 somewhat falcate, linear, coriaceous, entire. Flowers dioecious, the males 

 in dense terminal, large, peduncled cones, composed of numerous closely 

 imbricate, cuneate, long-acuminate, scales, bearing beneath many crowded, 

 1-celled anthers. Female inflorescence consisting of elongated, flat, densely 

 brown-woolly carpellary leaves (carpophores), more or less crowded at 

 the apex of the stem, somewhat dilated above into an entire, toothed, or 

 pectinate blade. Flowers consisting of ovules only, 1 to 6 in distant 

 notches on each side of the stalk of the carpophyll. Seeds ellipsoid. 



Genera 9, species about 90, in the tropics and south temperate zone of 

 both hemispheres, a single genus and 3 or 4 species in the Philippines. 



I. CYCAS Linnaeus 



Characters of the Family as given above. (The ancient Greek name.) 

 Species about 16, -tropical Asia to Japan southward to Australia and 

 Polynesia, 3 or 4 in the Philippines. 



