206 The Philippine Journal of Science iws 



form that the species takes under conditions unfavorable to the 

 development of robust coenobia. These specimens are in Vene- 

 tian turpentine and considerably shrunken. In some lots in the 

 same medium there appears to be very little shrinkage. The 

 figured specimens (43 to 45) and some others (46 to 52) will 

 be described. 



Specimen 43.— Plate 6, fig. 43. This is a female coenobium 

 with about twenty oospores of about 35 to 39 p. It measures 

 only about 200 by 240 p. 



Specimen U-— Plate 6, fig. 44. This is an asexual coeno- 

 bium with two daughters each containing two large gonidia 

 and in one a third, very small gonidium. The mother is only 

 about 150 by 160 fh the daughters about 70 by 80 /*, and the 

 gonidia about 15 p. 



Specimen 45.— Plate 6, fig. 45. An asexual coenobium with 

 two daughters, each containing two large gonidia and one or 

 two vestigial gonidia. The mother is 170 p. wide and 165 h 

 long; the daughters are about 80 by 100 /*; and the gonidia are 

 about 25 fi in diameter. The polar regions of the mother coeno- 

 bium are greatly shrunken by the mounting medium in this as 

 well as in the preceding specimen. 



Specimen 46.— Not figured. In a different lot of material, 

 associated, apparently by accidental admixture, with forms re- 

 sembling specimens 39 to 42, that are not shrunken in mounting, 

 there is a coenobium of the same kind as specimens 44 and 45 

 having an even more-compact appearance. It measures 170 by 

 180 p, has two daughters of about 80 by 120 p, and in each two 

 gonidia of from 42 to 50 p. 



The small forms are very abundant in collections IV and V 

 made at Pasig, near Manila, in August, 1914. Some descriptive 

 data pertaining to six coenobia of this material will be recorded 

 here. The first five are in Venetian turpentine, and the last is 

 in glycerine. A comparison of the material in the two media 

 seems to show that there is more shrinkage in the Venetian tur- 

 pentine than in the glycerine. 



Specimen 47. — This is a mother coenobium that was selected 

 because it was thought to contain only one daughter. Closer 

 examination revealed the outer outline of the capsule of an ab- 

 sent daughter. This capsule is a little shorter than that of the 

 present daughter. No place of exit of the absent daughter could 

 be seen. The remaining daughter occupies a little more than 

 its share of the space within the mother. The mother measured 

 170 by 180 i*. It consists of about 5,300 cells packed closely to- 



