FLORULA OF A PIECE OF WASTE GROUND AT ABERDEEN 239 



Hesperis matronalis, L. Two plants, in flower, in July, and in flower 

 and fruit in September. One seems to be the same plant 

 as that observed last year. 



Sisymbrium pannonicum, Jacq. For this species, which in 1896 

 appeared to be increasing and seeded freely, I looked in vain 

 in July. In September I found one plant just coming into 

 flower on a rubbish heap on a part of the ground at some 

 distance from where it had been most abundant. 



Brassica Napus, L. Abundant on a heap of rubbish on slope of 



cinders. 

 B. Sinapistrum, Boiss. Fl. in September ; common along the side 



near flour-mills. 

 Capsella Bursa-pastoris, Web. Here and there on more open places, 



but diminishing. 

 \^Lepidium Draba, L. The single plant recorded as brought from 



this ground into my garden in 1895 has spread freely by buds 



produced from the roots, which have extended widely through 



the soil. It produced numerous flowers, of which a consider- 



able proportion, though not so large as in 1895, showed note- 



worthy deviations from the usual floral structure. The 



species has not reappeared on the waste ground under 



consideration.] 

 Cochlearia Armoracia, L. (horse radish). I omitted to note the 



occurrence in 1896 of two plants in a vegetative state. These 



plants have grown larger this year, but have not shown any sign 



of flowering. 



Viola tricolor, L. One weak plant, on the cinders. 

 Lychnis alba, Mill. Increasing in frequency, especially near the 



mills (up to 3 + there), but still only scattered singly over most 



parts of the ground. 

 Sagina procumbens, L. Not observed till 1897, when one or two 



plants were found on the cinders. 

 Cerastium triviale, Link. Up to 2 + on more open spots, but 



becoming less plentiful. 

 Stellaria media, Cyr. Plentiful (up to 3 + ) near the mills, but usually 



from i to 2, on opener spots becoming less plentiful. 

 Spergula arvensis, Z., var. sativa, Boenn. As in former years, more 



common (to 2) near mills. 



,- ( Only one or two observed, becoming less 

 Geranium molle, Z.I ' common as ground is covered with 

 G. dissectum, L. j 



coarser 



Ulex europaeus, L. Eight or ten plants on the cinders, the largest 

 being a bush about fifteen inches across. None have attempted 

 to flower. 



