[; 189] 
"d 
XI. The Anatomy of some Sgffotaceous Seedlings. 
By WINIFRED Sirf, B Se, I LS. 
(Plates 25 & 26.) 
Read 2nd April, 1908. 
Im 
Ix seeking for the origin of the laticiferous tissue of the Sapotaceze I have had 
occasion to examine a number of seeds and seedlings of that order. 
As a general interest has of late been aroused in the anatomy of seedlings from the 
point of view of phylogeny, and as I have found the literature on the Sapotaceze 
barren of information on the subject, it seemed useful to collect my observations on 
the anatomy of Sapotaceous seedlings at once, instead of waiting till the work on the 
order in general was brought to a conclusion. I was the more inclined to do this 
because the order shows several uncommon features. One of these is the exceptional 
mode of transition from root to stem ; another is the presence of a swollen hypocotyl 
- and of some other signs of a geophilous habit; and the last lies in an apparent lack of 
continuity in the different parts of the vascular system. 
. Some seedlings of Payena Leerii, Palaquium petiolare and P. sp., Bassia longifolia 
nd B. latifolia, Mimusops Schimperi and M. Kauki, Imbricaria coriacea, Chrysophylium 
burghii and C. oliveforme, were collected in Ceylon by Dr. Fritsch. The other 
Seedlings examined were germinated at Chelsea Physic Garden from seeds obtained 
m Barbados, Singapore, Ceylon, and Sydney. I take this opportunity of expressing 
my sincere thanks to Sir Daniel Morris and Dr. Fritsch, to Mr. Ridley, Dr. Willis, 
- Wright, and to Mr. Maiden, for so kindly supplying me with the means to carry 
this research. Seeds gathered as soon as ripe, naturally dried, and sent simply in 
cotton bags were the most successful; but many failed to germinate. 
Dr. Fritsch’s seedlings were fixed in alcohol. Other material has been fixed for the 
lost part in chromo-acetie acid or in acetic alcohol, and stained with Bismarck brown, 
4 nge gentian, and gentian violet. Cedar-wood oil replaced xylol, as the latter dissolves 
le latex. ` 
The seeds and seedlings examined belong to the following species :— 
. Bassia longifolia | ; P s 
Bassia latifolia. | Placed by Engler and Prantl in the group Puaguiee-Tilipineæ. 
Palaquium petiolare. 
 Palaquium sp. J 
Chrysophyllum Cainito. 
Chrysophyllum oliveforme. | Of the Palaquiee- Chrysophyllee. 
Achras Sapota. | Of the Palaquiee-Sideroxylea. 
2G 
; VOL. VIL 
