![]() ![]() Below, some fruits are shown in various stages of disrepair:īelow, another shot shows that certain fruits do non-standard things:Ītop the exposed seed at the top left, a green sprout has formed, apparently because recent rains have kept the seed moist. Nowadays the fruits are maturing, and partially eaten fruits and empty husks litter the ground below the trees. So, now we know what the small, warty flowers of Casearia corymbosa develop into.įrom the SeptemNewsletter issued from Rancho Regenesis in the woods ±4kms west of Ek Balam Ruins, central Yucatán, MÉXICO And remembering that, I realized that I've already described this tree in its flowering state, as you can see above. When I see them, I think of the tropical Flacourtia Family, the Flacourtiaceae. Several plant families are capable of producing those pale or "pellucid" dots, especially the Citrus and Myrtle Families, but those elongated pellucid lines appearing with the dots is something special. A broken open fruit showed what appeared to be three potential seeds, each in its own carpel, as seen below:Īt first I couldn't place this species, but then something about the leaves encouraged me to hold the leaf against the sun and look closely with my handlens, and I saw what's shown below: I'm unsure what anatomists would say about this, but the appearance is distinctive. In contrast to those fruits, a cherry, for instance, bears beneath it a slender, pliable stem known as a pedicel, but here the fruit appears to arise from gnarly wood. A cluster of several such fruits shows something unusual about their arrangement, as seen below: And look at the orange, cherry-like fruit at the top right. Not many trees line their leaves up so neatly along their branches, alternating them and keeping them in one plane. This week as I was climbing our new cement water tower I looked into the forest canopy and saw the interesting visual composition shown below: Still, I suspect that they're filled with chemicals repulsive to insects.įrom the AugNewsletter issued from Rancho Regensis north of Valladolid, Yucatán, MÉXICO Casearia nitida's leaves aren't particularly fragrant, though. Crush such leaves and typically they emit a pungent fragrance. Usually pellucid dots are glands filled with aromatic oils. Botanists say that such translucing points are "pellucid." This pellucid dotting and streaking is fairly common in the Flacourtia Family. However, those curved streaks are extraordinary. Several plant families display such dots - the Citrus Family (Rutaceae), the Myrtle Family (Myrtaceae) foremost among them. "lacunae", you see lots of bright dots and streaks. Anthropology.There you see a typical leaf's venation, but within the green areas between veins, the UPM High Impact Putra Grant, Graduate Research Fellowship (GRF) from UPMĬalcium oxalates Morphology Pellucid dots Secretory cavities The information obtained from this study will be helpful for the identification and future taxonomic-related studies of this plant species. ![]() Calcium oxalates were present in the leaf and stem sections, while non-glandular trichomes were detected on stem and petiole sections. Xylem, phloem, and pericyclic fibers were also found in the leaf, stem, and petiole sections. Leaf cross-section consisted of schizogenous secretory cavities, whereas stem and petiole cross-sections show abundant schizolysigenous secretory cavities. Pellucid dots were observed on both adaxial and abaxial leaf surfaces. The compound leaves are trifoliate and arranged alternately. Histochemical analyses were carried out using differential stains to identify the cellular components in leaf, stem and, petiole tissue sections. Embedding and sectioning were performed on the tissues after infiltration. The histological method was optimized by modifying a few parameters including the number of fixation days, dehydration duration with degraded series of butanol, clearing and infiltration durations. Macroscopic characterization, optimization of histological procedure, and histochemical analyses of differential stains were carried out on the leaves, stems, and petioles of L. Thus, the current study was aimed to investigate macroscopic and microscopic diagnostic features of L. Other than brief morphological descriptions, there are no published reports on other identification features of this plant. Luvunga crassifolia is an underutilized plant in the Citrus family. ![]()
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