4c6 AN EXPLANATION OF 
619 Semen, Seed, the Rudiment of a new Plant ; are known 
according to the Number, Figure, Superficies, and Con- 
fiftence. 
6z0 Hilum, the Eye, an external Scar of the Seed, where it hag 
been fixed to the Fruit or Receptacle. 
621 Corculum, the Effence of a new Plant within the Seed. 
622 Plumula, Part of the Corculum, the afcending {caly Part of 
the Plant. 
623 Roftellum, the defcending Part of the Corculum that forms 
the Root. 
624 Cotyledon, the fide Lobes of the Seed of 4 porous Subs 
ftance, and perifhing. 
625 Corona a Crown, a little Cup adhering to the Top of the 
Seed, by which it flies, 
626 Pappus, a downy feathered Cup, adhering to the Top of 
the Seed, by which it flies. 
627 Stipitatus, a Kind of thread-like Trunk, elevating the 
Down, and conneéting it with the Seeds, 
628 Capillaris, Hairs undivided. 
629 Plumofus, having feathery Hairs. 
630 Cauda, a Thread terminating the Seed. 
631 Hambs, a hooked Seed adhering to Animals. 
632 Ala, a membranaceous Wing, fixed to the Seed. 
633 Nux, a Nut, a Seed covered with a bony epidermis, having 
one, two, or more Cells. 
634 Arillus, the proper exterior Coat of a Seed that falls off 
fpontaneoufly, and is either cartilaginous, or fucculent. 
635 Receptaculum, the Bafe, by which the Parts of Fruétification 
are connected. 
636 Commune, containing many Flowers and Fruit. 
637 Punétatum, a Receptacle marked with hollow Pundtures, 
638 Pilofum (241) hairy. 
639 Paleaceum, chafty Scales which diftinguifh the Florets. 
640 Planum (246) plain, a flat Surface. 
641 Convexum (249) the Ditk elevated. 
642 Conicum, cone-fhaped, rounded and leffening towards the 
Point. 
643 Subulatum (269) awl-fhaped. 
644 Compofitus-flos, a compound Flower, with the Receptacle 
{pread out and entire, the Florets {effile. 
645 Aggregatus-flos, an Aggregate Flower, the Receptacle en- 
larged, and the Florets on little Peduncles. 
646 Umbella, an Umbel, a Receptacle which from a common 
centre, runs out into thread-fhaped Footftalks of pro- 
portionate Lengths. 
647 Sim- 
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