198 Mr J. Scott o?^ the Sexuality of the Higher Cryptogams. 



3Iacrospores, greyish-wliite, of a millimetre, reticulated. 

 Stem ascending, llexuose at the extremity, branches spread- 

 ing. Leaves oblong-ovate, oblique, falcate, somewhat blunt, 

 3 to 4 millimetres long ; anterior base sub-dilated, margin 

 ciliated, posterior base rounded, margin denticulated. Sti- 

 puliforra leaves oblong or oblong-ovate, acuminate, den- 

 ticulate, carinate, recurved, 2 millimetres long ; exterior 

 base auricled, and bordered v^ith a few long hairs ; interior 

 rounded, and nearly entire. 



2. Selaginella Danielsiana. — Spihe sessile, short and thick, 

 6 to 7 millimetres long. Bracteas ovate, acute, denticulate. 

 Microsporangia oblong, tumid, J of a millimetre. Micro- 

 spores brownish-grey, wrinkled and granulated as in S. Mar- 

 tensii, of a millimetre. 3Iacrospores white J of a milli- 

 metre, reticulated. Stem ascending, branches short, rigid, 

 erect, sub-fastigiate. Leaves ovately-oblong, 4 to 5 milli- 

 metres long ; anterior base dilated, and sparingly fringed 

 with long hairs ; posterior base sub-truncate, margin entire. 

 Stipuliform leaves ovate, acuminated, carinato, recurved, 

 3 millimetres long; exterior base auriculate, margin sparingly 

 ciliated ; interior base rounded, margin entire. 



3. Selaginella Danielsiana-Martensii. — Spike sessile, short 

 and thick, 3 to 4 millimetres long. Bracteas ovate-triangu- 

 lar, shortly mucronate, denticulate. Microsporangia ovate- 

 oblong, half a millimetre long, tumid. Microspores brown- 

 ish-grey, finely granulated, size very variable, from the 38th 

 to 30th of a millimetre ; a high percentage apparently imper- 



■fectly develop)ed. Macrospores white, ^ of a millimetre, 

 obscurely reticulated. Stem ascending, branches numerous, 

 short, rigid, erect, and sub-fastigiate. Leaves oblong-ovate, 

 bluntish, slightly oblique, 2 to 3 millimetres long; posterior 

 margin denticulated ; anterior margin entire. Stipuliform 

 leaves lanceolate-ovate, shortly mucronate, carinate, 1 to 2 

 millimetres long. 



Again, secondly, by a relative comparison of the hybrid 

 and parent forms, v/e have something like the following- 

 results : — First, in the short, erect, rigid, and somewhat 

 fastigiate branches (destitute of any principal or leading 

 shoots) of the hybrid plant we have a marked characteristic 

 of the female parent, the S. Danielsiana. As in the latter 

 species, the right and left forks of the terminal bud are in 



