The axis of a charophyte thallus is composed of a number of internodes, nodes, and branchlets
. From among all charophytes, species of the genus Chara represent the most diversified morphological structure.
Therefore, we examined each shrub in September 1990 and May 1991 for abundance of scales and gall formers by randomly selecting three branchlets
from each shrub and counting all scale insects and gall formers by gall type.
We found no evidence for interactions among nipple gallmakers on different leaves (dry mass of our focal gallmakers was not predicted by gall load at either neighborhood or branchlet
Male strobili (cones) are terminal on branchlets
and have 3-7 pairs or trios of sporophylls, each containing 2-6 pollen sacs.
Ovules solitary or occasionally paired in the axils of bracts on short branchlets
or stalks which themselves are axillary on the first-, second- or occasionally third-year branchlet
, sessile, subtending scales about 12-20, decussate, ovate to flabellate, concave, membranous, often rugose, nearly enclosed at maturity by the aril; arils open at the apex, 5-10 x 5-7 mm, green when young, sometimes remaining so, becoming orange or usually bright scarlet red at maturity; seeds hard, ovoid, 5-7 x 4-5 mm, becoming 2-4-angled at the apex, the hilum slightly depressed, ovate, triangular or square.
LEAF DESCRIPTION: 3 1/2" to 5" long and 1/2" wide, appearing on branchlets
, each branchlet
containing numerous leaves, leaves lanceolate shape with sparsely denticulate margins, glaucous beneath, parallel venation.
dark purple or purplish brown, branches are flexible and have capacity to bear load: Stipules caduceus, linear-lanceolate, petiole 2-4.5 cm, sparsely pubescent or glabrous; leaf blade ovate, or sub orbicular, glabrous, base rounded or subcordate, margin shortly spinulose-serrate, apex long or shortly acuminate.
Acacia catechu is a deciduous tree with a light feathery crown and dark brown, glabrous, slender, thorny, shining branchlets
, usually crooked.
with small, specialized, oval to spherical hapteroid cells, 40-80 [micro]m diameter (Fig.